diff --git a/backend/prisma/schema.prisma b/backend/prisma/schema.prisma
index e881413..601e1f7 100644
--- a/backend/prisma/schema.prisma
+++ b/backend/prisma/schema.prisma
@@ -1076,6 +1076,7 @@ model AI3DTask {
   userId         Int       @map("user_id") /// 用户ID（任务归属用户）
   inputType      String    @map("input_type") /// 输入类型：text | image
   inputContent   String    @map("input_content") @db.Text /// 输入内容：文字描述或图片URL
+  generateType   String    @default("Normal") @map("generate_type") /// 生成类型：Normal(带纹理) | Geometry(白模) | LowPoly(低多边形) | Sketch(草图)
   status         String    @default("pending") /// 任务状态：pending | processing | completed | failed | timeout
   resultUrl      String?   @map("result_url") @db.Text /// 生成的3D模型URL（单个结果，兼容旧数据）
   previewUrl     String?   @map("preview_url") @db.Text /// 预览图URL（单个结果，兼容旧数据）
diff --git a/backend/src/ai-3d/ai-3d.service.ts b/backend/src/ai-3d/ai-3d.service.ts
index 7c6be29..f130323 100644
--- a/backend/src/ai-3d/ai-3d.service.ts
+++ b/backend/src/ai-3d/ai-3d.service.ts
@@ -55,6 +55,7 @@ export class AI3DService {
         tenantId,
         inputType: dto.inputType,
         inputContent: dto.inputContent,
+        generateType: dto.generateType || 'Normal',
         status: 'pending',
       },
     });
diff --git a/frontend/src/views/model/ModelViewer.vue b/frontend/src/views/model/ModelViewer.vue
index 6a2f173..5fdec91 100644
--- a/frontend/src/views/model/ModelViewer.vue
+++ b/frontend/src/views/model/ModelViewer.vue
@@ -85,19 +85,21 @@
         </div>
       </div>
 
-      <!-- Scene Settings Panel (右侧) -->
-      <div v-if="!loading && !error" class="scene-settings">
-        <div
-          class="settings-header"
-          @click="settingsPanelOpen = !settingsPanelOpen"
-        >
-          <span class="settings-title"> <SettingOutlined /> 场景设置 </span>
-          <span class="collapse-icon" :class="{ 'is-open': settingsPanelOpen }">
-            <RightOutlined />
-          </span>
-        </div>
+      <!-- 右侧面板容器 -->
+      <div v-if="!loading && !error" class="right-panels">
+        <!-- Scene Settings Panel -->
+        <div class="scene-settings">
+          <div
+            class="settings-header"
+            @click="settingsPanelOpen = !settingsPanelOpen"
+          >
+            <span class="settings-title"> <SettingOutlined /> 场景设置 </span>
+            <span class="collapse-icon" :class="{ 'is-open': settingsPanelOpen }">
+              <RightOutlined />
+            </span>
+          </div>
 
-        <div v-show="settingsPanelOpen" class="settings-body">
+          <div v-show="settingsPanelOpen" class="settings-body">
           <!-- 背景设置 -->
           <div class="settings-group">
             <div class="group-title">背景</div>
@@ -326,11 +328,38 @@
           </div>
         </div>
 
-        <!-- 重置按钮 -->
-        <div v-show="settingsPanelOpen" class="settings-footer">
-          <a-button size="small" class="reset-btn" @click="resetSettings"
-            >重置默认</a-button
+          <!-- 重置按钮 -->
+          <div v-show="settingsPanelOpen" class="settings-footer">
+            <a-button size="small" class="reset-btn" @click="resetSettings"
+              >重置默认</a-button
+            >
+          </div>
+        </div>
+
+        <!-- 下载区域 - 独立面板，在场景设置下方20px -->
+        <div class="download-panel">
+        <a-select
+          v-model:value="selectedFormat"
+          class="format-select"
+          :disabled="downloadingFormat !== null"
+        >
+          <a-select-option
+            v-for="format in downloadFormats"
+            :key="format.key"
+            :value="format.key"
           >
+            {{ format.name }}
+          </a-select-option>
+        </a-select>
+        <a-button
+          type="primary"
+          class="download-btn"
+          :loading="downloadingFormat !== null"
+          @click="handleDownload(selectedFormat)"
+        >
+          <template #icon><DownloadOutlined /></template>
+          下载
+        </a-button>
         </div>
       </div>
 
@@ -342,6 +371,57 @@
           <span class="hint-item"><span class="key">滚轮</span>缩放</span>
         </div>
       </div>
+
+      <!-- 底部控制栏 -->
+      <div v-if="!loading && !error" class="bottom-controls">
+        <!-- 左箭头 - 切换模型 -->
+        <button
+          v-if="modelUrls.length > 1"
+          class="model-nav-btn"
+          :disabled="currentModelIndex === 0"
+          @click="switchModel(-1)"
+        >
+          <LeftOutlined />
+        </button>
+
+        <!-- 渲染模式选择器 -->
+        <div class="render-mode-bar">
+          <!-- 自动旋转 -->
+          <div
+            class="mode-item"
+            :class="{ active: autoRotate }"
+            title="自动旋转"
+            @click="toggleAutoRotate"
+          >
+            <div class="mode-icon auto-rotate-icon">
+              <SyncOutlined :spin="autoRotate" />
+            </div>
+          </div>
+
+          <!-- 渲染模式 -->
+          <div
+            v-for="mode in renderModes"
+            :key="mode.key"
+            class="mode-item"
+            :class="{ active: currentRenderMode === mode.key }"
+            :title="mode.label"
+            @click="switchRenderMode(mode.key)"
+          >
+            <div class="mode-icon" :style="{ background: mode.preview }">
+            </div>
+          </div>
+        </div>
+
+        <!-- 右箭头 - 切换模型 -->
+        <button
+          v-if="modelUrls.length > 1"
+          class="model-nav-btn"
+          :disabled="currentModelIndex >= modelUrls.length - 1"
+          @click="switchModel(1)"
+        >
+          <RightOutlined />
+        </button>
+      </div>
     </div>
   </div>
 </template>
@@ -356,7 +436,11 @@ import {
   FullscreenExitOutlined,
   SettingOutlined,
   RightOutlined,
+  LeftOutlined,
   AppstoreOutlined,
+  DownloadOutlined,
+  LoadingOutlined,
+  SyncOutlined,
 } from "@ant-design/icons-vue"
 
 // @ts-ignore
@@ -371,6 +455,13 @@ import { OBJLoader } from "three/examples/jsm/loaders/OBJLoader.js"
 import { MTLLoader } from "three/examples/jsm/loaders/MTLLoader.js"
 // @ts-ignore
 import { OrbitControls } from "three/examples/jsm/controls/OrbitControls.js"
+// @ts-ignore
+import { GLTFExporter } from "three/examples/jsm/exporters/GLTFExporter.js"
+// @ts-ignore
+import { OBJExporter } from "three/examples/jsm/exporters/OBJExporter.js"
+// @ts-ignore
+import { STLExporter } from "three/examples/jsm/exporters/STLExporter.js"
+import { message } from "ant-design-vue"
 
 const router = useRouter()
 const route = useRoute()
@@ -384,6 +475,166 @@ const modelInfo = ref<{ size: string; vertices: string; faces: string } | null>(
 )
 const settingsPanelOpen = ref(true)
 
+// 多模型和渲染模式相关
+const modelUrls = ref<string[]>([])
+const currentModelIndex = ref(0)
+const currentRenderMode = ref("textured")
+const autoRotate = ref(true) // 默认开启自动旋转
+
+// 渲染模式配置（4种：素模、材质、法线、PBR）
+const renderModes = [
+  {
+    key: "clay",
+    label: "素模",
+    preview: "linear-gradient(135deg, #c9c9c9 0%, #e8e8e8 100%)",
+  },
+  {
+    key: "textured",
+    label: "材质贴图",
+    preview: "linear-gradient(135deg, #8b7355 0%, #d4c4b0 100%)",
+  },
+  {
+    key: "normal",
+    label: "法线贴图",
+    preview: "linear-gradient(135deg, #7b68ee 0%, #87ceeb 100%)",
+  },
+  {
+    key: "pbr",
+    label: "PBR渲染",
+    preview: "linear-gradient(135deg, #ff6b9d 0%, #c44cff 50%, #6b5bff 100%)",
+  },
+]
+
+// 切换自动旋转
+const toggleAutoRotate = () => {
+  autoRotate.value = !autoRotate.value
+  if (controls) {
+    controls.autoRotate = autoRotate.value
+    controls.autoRotateSpeed = 2.0
+  }
+}
+
+// 下载格式配置
+const downloadFormats = [
+  { key: "glb", name: "GLB" },
+  { key: "gltf", name: "GLTF" },
+  { key: "obj", name: "OBJ" },
+  { key: "stl", name: "STL" },
+]
+
+// 下载状态
+const selectedFormat = ref("glb")
+const downloadingFormat = ref<string | null>(null)
+
+// 下载模型
+const handleDownload = async (format: string) => {
+  if (!model || downloadingFormat.value) return
+
+  downloadingFormat.value = format
+
+  try {
+    let blob: Blob
+    let filename = `model_${Date.now()}`
+
+    // 恢复原始材质后再导出
+    const currentMode = currentRenderMode.value
+    if (currentMode !== "textured") {
+      applyRenderMode("textured")
+    }
+
+    switch (format) {
+      case "glb":
+        blob = await exportGLB()
+        filename += ".glb"
+        break
+      case "gltf":
+        blob = await exportGLTF()
+        filename += ".gltf"
+        break
+      case "obj":
+        blob = exportOBJ()
+        filename += ".obj"
+        break
+      case "stl":
+        blob = exportSTL()
+        filename += ".stl"
+        break
+      default:
+        throw new Error("不支持的格式")
+    }
+
+    // 恢复渲染模式
+    if (currentMode !== "textured") {
+      applyRenderMode(currentMode)
+    }
+
+    // 触发下载
+    const url = URL.createObjectURL(blob)
+    const a = document.createElement("a")
+    a.href = url
+    a.download = filename
+    document.body.appendChild(a)
+    a.click()
+    document.body.removeChild(a)
+    URL.revokeObjectURL(url)
+
+    message.success(`${format.toUpperCase()} 文件下载成功`)
+  } catch (err: any) {
+    console.error("导出失败:", err)
+    message.error(`导出失败: ${err.message}`)
+  } finally {
+    downloadingFormat.value = null
+  }
+}
+
+// 导出 GLB
+const exportGLB = (): Promise<Blob> => {
+  return new Promise((resolve, reject) => {
+    const exporter = new GLTFExporter()
+    exporter.parse(
+      model!,
+      (result: ArrayBuffer) => {
+        resolve(new Blob([result], { type: "model/gltf-binary" }))
+      },
+      (error: Error) => reject(error),
+      { binary: true }
+    )
+  })
+}
+
+// 导出 GLTF
+const exportGLTF = (): Promise<Blob> => {
+  return new Promise((resolve, reject) => {
+    const exporter = new GLTFExporter()
+    exporter.parse(
+      model!,
+      (result: object) => {
+        const json = JSON.stringify(result, null, 2)
+        resolve(new Blob([json], { type: "application/json" }))
+      },
+      (error: Error) => reject(error),
+      { binary: false }
+    )
+  })
+}
+
+// 导出 OBJ
+const exportOBJ = (): Blob => {
+  const exporter = new OBJExporter()
+  const result = exporter.parse(model!)
+  return new Blob([result], { type: "text/plain" })
+}
+
+// 导出 STL
+const exportSTL = (): Blob => {
+  const exporter = new STLExporter()
+  const result = exporter.parse(model!, { binary: true })
+  return new Blob([result], { type: "application/octet-stream" })
+}
+
+// 保存原始材质
+let originalMaterials: Map<THREE.Mesh, THREE.Material | THREE.Material[]> = new Map()
+
 // 场景设置默认值
 const defaultSettings = {
   backgroundColor: "#f5f5f5",
@@ -433,30 +684,156 @@ let fillLight: THREE.DirectionalLight | null = null
 let spotLight: THREE.SpotLight | null = null
 let gridHelper: THREE.GridHelper | null = null
 
-// 获取模型 URL - 支持刷新页面保持状态
+// 获取模型 URL - 支持刷新页面保持状态，支持多模型
 const SESSION_KEY = "model-viewer-url"
-const getModelUrl = (): string => {
-  // 优先从 query 获取
+const SESSION_KEY_URLS = "model-viewer-urls"
+const SESSION_KEY_INDEX = "model-viewer-index"
+
+const initModelUrls = () => {
+  // 优先从 query 获取（支持多个URL，用逗号分隔）
   const queryUrl = route.query.url as string
-  if (queryUrl) {
-    // 保存到 sessionStorage，以便刷新页面时恢复
+  const queryUrls = route.query.urls as string
+  const queryIndex = route.query.index as string
+
+  if (queryUrls) {
+    // 多个URL（从query）
+    const urls = queryUrls.split(",").filter(Boolean)
+    sessionStorage.setItem(SESSION_KEY_URLS, JSON.stringify(urls))
+    modelUrls.value = urls
+    // 设置初始索引
+    if (queryIndex) {
+      currentModelIndex.value = Math.min(parseInt(queryIndex) || 0, urls.length - 1)
+    }
+  } else if (queryUrl) {
+    // 单个URL（从query）
     sessionStorage.setItem(SESSION_KEY, queryUrl)
-    return queryUrl
+    modelUrls.value = [queryUrl]
+  } else {
+    // 从 sessionStorage 恢复
+    const storedUrls = sessionStorage.getItem(SESSION_KEY_URLS)
+    const storedUrl = sessionStorage.getItem(SESSION_KEY)
+    const storedIndex = sessionStorage.getItem(SESSION_KEY_INDEX)
+
+    if (storedUrls) {
+      modelUrls.value = JSON.parse(storedUrls)
+      // 恢复索引
+      if (storedIndex) {
+        currentModelIndex.value = Math.min(
+          parseInt(storedIndex) || 0,
+          modelUrls.value.length - 1
+        )
+      }
+    } else if (storedUrl) {
+      modelUrls.value = [storedUrl]
+    }
   }
-  // 如果 query 没有，尝试从 sessionStorage 恢复
-  const storedUrl = sessionStorage.getItem(SESSION_KEY)
-  if (storedUrl) {
-    return storedUrl
-  }
-  return ""
 }
-const modelUrl = ref(getModelUrl())
-console.log("模型查看器 - URL:", modelUrl.value)
+
+const modelUrl = ref("")
+const updateCurrentModelUrl = () => {
+  modelUrl.value = modelUrls.value[currentModelIndex.value] || ""
+}
+
+// 切换模型
+const switchModel = (direction: number) => {
+  const newIndex = currentModelIndex.value + direction
+  if (newIndex >= 0 && newIndex < modelUrls.value.length) {
+    currentModelIndex.value = newIndex
+    updateCurrentModelUrl()
+    // 重置渲染模式为默认
+    currentRenderMode.value = "textured"
+    // 重置自动旋转
+    autoRotate.value = false
+    if (controls) {
+      controls.autoRotate = false
+    }
+    // 重新加载模型
+    loadModel()
+  }
+}
+
+// 切换渲染模式
+const switchRenderMode = (mode: string) => {
+  if (currentRenderMode.value === mode || !model) return
+  currentRenderMode.value = mode
+  applyRenderMode(mode)
+}
+
+// 应用渲染模式
+const applyRenderMode = (mode: string) => {
+  if (!model) return
+
+  model.traverse((child: THREE.Object3D) => {
+    if (child instanceof THREE.Mesh) {
+      // 如果没保存过原始材质，先保存
+      if (!originalMaterials.has(child)) {
+        originalMaterials.set(child, child.material)
+      }
+
+      const originalMaterial = originalMaterials.get(child)
+
+      switch (mode) {
+        case "wireframe":
+          // 线框模式
+          child.material = new THREE.MeshBasicMaterial({
+            color: 0x00ff00,
+            wireframe: true,
+          })
+          break
+
+        case "clay":
+          // 素模 - 灰色无贴图
+          child.material = new THREE.MeshStandardMaterial({
+            color: 0xcccccc,
+            metalness: 0.1,
+            roughness: 0.8,
+          })
+          break
+
+        case "textured":
+          // 恢复原始材质
+          if (originalMaterial) {
+            child.material = originalMaterial
+          }
+          break
+
+        case "normal":
+          // 法线贴图可视化
+          child.material = new THREE.MeshNormalMaterial()
+          break
+
+        case "pbr":
+          // PBR渲染 - 增强金属感
+          if (originalMaterial && !Array.isArray(originalMaterial)) {
+            const mat = originalMaterial as THREE.MeshStandardMaterial
+            child.material = new THREE.MeshStandardMaterial({
+              color: mat.color || 0xffffff,
+              map: mat.map || null,
+              metalness: 0.8,
+              roughness: 0.2,
+              envMapIntensity: 1.5,
+            })
+          } else {
+            child.material = new THREE.MeshStandardMaterial({
+              color: 0xffffff,
+              metalness: 0.8,
+              roughness: 0.2,
+            })
+          }
+          break
+      }
+    }
+  })
+}
+
+console.log("模型查看器初始化")
 
 // 返回上一页
 const handleBack = () => {
-  // 清除 sessionStorage 中的 URL，防止下次从其他入口进入时使用旧的 URL
+  // 清除 sessionStorage 中的 URL 和索引，防止下次从其他入口进入时使用旧数据
   sessionStorage.removeItem(SESSION_KEY)
+  sessionStorage.removeItem(SESSION_KEY_URLS)
+  sessionStorage.removeItem(SESSION_KEY_INDEX)
   // 检查是否有历史记录可以返回
   // 如果是从新窗口打开的（无历史），则关闭窗口
   if (window.history.length <= 1) {
@@ -647,6 +1024,9 @@ const initScene = () => {
   controls.enablePan = true
   controls.panSpeed = 1
   controls.rotateSpeed = 1
+  // 自动旋转
+  controls.autoRotate = autoRotate.value
+  controls.autoRotateSpeed = 2.0
 
   // 添加半球光 - 更自然的环境光
   const hemiLight = new THREE.HemisphereLight(0xffffff, 0x444444, 0.6)
@@ -1077,6 +1457,9 @@ const disposeScene = () => {
   mainLight = null
   fillLight = null
   gridHelper = null
+
+  // 清理材质缓存
+  originalMaterials.clear()
 }
 
 // 重试
@@ -1089,6 +1472,10 @@ onMounted(() => {
   window.addEventListener("resize", handleResize)
   document.addEventListener("fullscreenchange", handleFullscreenChange)
 
+  // 初始化多模型URL
+  initModelUrls()
+  updateCurrentModelUrl()
+
   initScene()
   loadModel()
 })
@@ -1526,22 +1913,32 @@ $gradient-primary: linear-gradient(135deg, $primary 0%, $primary-light 100%);
 }
 
 // ==========================================
-// Scene Settings (Right Side)
+// Right Panels Container
 // ==========================================
-.scene-settings {
+.right-panels {
   position: absolute;
   top: 84px;
   right: 20px;
   width: 280px;
   max-height: calc(100% - 104px);
+  display: flex;
+  flex-direction: column;
+  gap: 20px;
+  z-index: 10;
+}
+
+// ==========================================
+// Scene Settings
+// ==========================================
+.scene-settings {
   background: rgba($surface, 0.85);
   backdrop-filter: blur(20px);
   border: 1px solid rgba($primary, 0.3);
   border-radius: 12px;
-  z-index: 10;
   overflow: hidden;
   display: flex;
   flex-direction: column;
+  max-height: calc(100vh - 200px);
 }
 
 .settings-header {
@@ -1720,6 +2117,67 @@ $gradient-primary: linear-gradient(135deg, $primary 0%, $primary-light 100%);
   }
 }
 
+// ==========================================
+// Download Panel (独立面板，场景设置下方20px)
+// ==========================================
+.download-panel {
+  display: flex;
+  gap: 10px;
+  padding: 14px 16px;
+  background: rgba($surface, 0.85);
+  backdrop-filter: blur(20px);
+  border: 1px solid rgba($primary, 0.3);
+  border-radius: 12px;
+  flex-shrink: 0;
+
+  .format-select {
+    flex: 1;
+
+    :deep(.ant-select-selector) {
+      background: rgba(40, 40, 55, 0.95) !important;
+      border: 1px solid rgba(255, 255, 255, 0.12) !important;
+      border-radius: 8px !important;
+      color: #fff !important;
+      height: 38px !important;
+
+      .ant-select-selection-item {
+        line-height: 36px !important;
+        font-weight: 500;
+        font-size: 13px;
+      }
+    }
+
+    :deep(.ant-select-arrow) {
+      color: rgba(255, 255, 255, 0.5);
+    }
+
+    &:hover :deep(.ant-select-selector) {
+      border-color: rgba(255, 255, 255, 0.25) !important;
+    }
+
+    &.ant-select-focused :deep(.ant-select-selector) {
+      border-color: $primary !important;
+      box-shadow: none !important;
+    }
+  }
+
+  .download-btn {
+    height: 38px;
+    padding: 0 18px;
+    border-radius: 8px;
+    font-weight: 500;
+    font-size: 13px;
+    background: $gradient-primary !important;
+    border: none !important;
+    box-shadow: 0 2px 8px rgba($primary, 0.3);
+
+    &:hover {
+      filter: brightness(1.1);
+      box-shadow: 0 4px 12px rgba($primary, 0.4);
+    }
+  }
+}
+
 // Select 样式
 :deep(.ant-select) {
   .ant-select-selector {
@@ -1790,4 +2248,118 @@ $gradient-primary: linear-gradient(135deg, $primary 0%, $primary-light 100%);
     }
   }
 }
+
+// ==========================================
+// Bottom Controls (底部控制栏容器)
+// ==========================================
+.bottom-controls {
+  position: absolute;
+  bottom: 80px;
+  left: 50%;
+  transform: translateX(-50%);
+  display: flex;
+  align-items: center;
+  gap: 10px;
+  z-index: 15;
+}
+
+// ==========================================
+// Model Navigation Buttons (左右箭头)
+// ==========================================
+.model-nav-btn {
+  width: 48px;
+  height: 48px;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  background: rgba(40, 40, 50, 0.9);
+  backdrop-filter: blur(10px);
+  border: none;
+  border-radius: 50%;
+  color: rgba(255, 255, 255, 0.8);
+  font-size: 16px;
+  cursor: pointer;
+  transition: all 0.2s ease;
+  flex-shrink: 0;
+
+  &:hover:not(:disabled) {
+    background: rgba(60, 60, 70, 0.95);
+    color: #fff;
+    transform: scale(1.05);
+  }
+
+  &:disabled {
+    opacity: 0.3;
+    cursor: not-allowed;
+  }
+}
+
+// ==========================================
+// Render Mode Bar (渲染模式选择器)
+// ==========================================
+.render-mode-bar {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+  padding: 8px 12px;
+  background: rgba(40, 40, 50, 0.9);
+  backdrop-filter: blur(20px);
+  border-radius: 30px;
+}
+
+.mode-item {
+  cursor: pointer;
+  transition: all 0.2s ease;
+  position: relative;
+
+  &:hover {
+    transform: scale(1.1);
+
+    &::after {
+      content: attr(title);
+      position: absolute;
+      bottom: 100%;
+      left: 50%;
+      transform: translateX(-50%);
+      padding: 4px 8px;
+      background: rgba(0, 0, 0, 0.85);
+      color: #fff;
+      font-size: 11px;
+      white-space: nowrap;
+      border-radius: 4px;
+      margin-bottom: 8px;
+      pointer-events: none;
+    }
+  }
+
+  &.active {
+    .mode-icon {
+      box-shadow: 0 0 0 2px rgba($primary, 0.6);
+    }
+
+    .auto-rotate-icon {
+      background: rgba($primary, 0.3);
+    }
+  }
+
+  .mode-icon {
+    width: 36px;
+    height: 36px;
+    border-radius: 50%;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    transition: all 0.2s ease;
+  }
+
+  .auto-rotate-icon {
+    background: rgba(255, 255, 255, 0.1);
+    color: rgba(255, 255, 255, 0.8);
+    font-size: 16px;
+
+    &:hover {
+      background: rgba(255, 255, 255, 0.15);
+    }
+  }
+}
 </style>
diff --git a/frontend/src/views/workbench/ai-3d/Generate.vue b/frontend/src/views/workbench/ai-3d/Generate.vue
index 07e8a07..e3f2167 100644
--- a/frontend/src/views/workbench/ai-3d/Generate.vue
+++ b/frontend/src/views/workbench/ai-3d/Generate.vue
@@ -262,11 +262,30 @@ const handleCardClick = (index: number) => {
   }
 
   if (card.status === "completed" && card.resultUrl) {
-    // Navigate to model viewer (使用路由导航，保持全屏模式)
+    // 收集所有有效的模型URLs
+    const allResultUrls = modelCards.value
+      .filter((c) => c.status === "completed" && c.resultUrl)
+      .map((c) => c.resultUrl)
+
+    // 存储到 sessionStorage（避免URL过长）
+    if (allResultUrls.length > 1) {
+      sessionStorage.setItem(
+        "model-viewer-urls",
+        JSON.stringify(allResultUrls)
+      )
+      sessionStorage.setItem("model-viewer-index", String(index))
+      // 清除单URL存储
+      sessionStorage.removeItem("model-viewer-url")
+    } else {
+      sessionStorage.setItem("model-viewer-url", card.resultUrl)
+      sessionStorage.removeItem("model-viewer-urls")
+      sessionStorage.removeItem("model-viewer-index")
+    }
+
+    // Navigate to model viewer
     const tenantCode = route.params.tenantCode as string
     router.push({
       path: `/${tenantCode}/workbench/model-viewer`,
-      query: { url: card.resultUrl },
     })
   }
 }
diff --git a/frontend/src/views/workbench/ai-3d/History.vue b/frontend/src/views/workbench/ai-3d/History.vue
index e21c605..48cda00 100644
--- a/frontend/src/views/workbench/ai-3d/History.vue
+++ b/frontend/src/views/workbench/ai-3d/History.vue
@@ -294,11 +294,23 @@ const handleViewTask = (task: AI3DTask) => {
 
 // 预览3D模型
 const handlePreview = (task: AI3DTask) => {
-  if (task.resultUrl) {
+  if (task.resultUrl || (task.resultUrls && task.resultUrls.length > 0)) {
     const tenantCode = route.params.tenantCode as string
+    const urls = task.resultUrls || [task.resultUrl]
+
+    // 存储到 sessionStorage（支持多模型）
+    if (urls.length > 1) {
+      sessionStorage.setItem("model-viewer-urls", JSON.stringify(urls))
+      sessionStorage.setItem("model-viewer-index", "0")
+      sessionStorage.removeItem("model-viewer-url")
+    } else {
+      sessionStorage.setItem("model-viewer-url", urls[0] || "")
+      sessionStorage.removeItem("model-viewer-urls")
+      sessionStorage.removeItem("model-viewer-index")
+    }
+
     router.push({
       path: `/${tenantCode}/workbench/model-viewer`,
-      query: { url: task.resultUrl },
     })
   }
 }
diff --git a/frontend/src/views/workbench/ai-3d/Index.vue b/frontend/src/views/workbench/ai-3d/Index.vue
index d731ca6..e374be4 100644
--- a/frontend/src/views/workbench/ai-3d/Index.vue
+++ b/frontend/src/views/workbench/ai-3d/Index.vue
@@ -612,11 +612,23 @@ const stopPolling = () => {
 
 // 预览3D模型
 const handlePreview = (task: AI3DTask) => {
-  if (task.resultUrl) {
+  if (task.resultUrl || (task.resultUrls && task.resultUrls.length > 0)) {
     const tenantCode = route.params.tenantCode as string
+    const urls = task.resultUrls || [task.resultUrl]
+
+    // 存储到 sessionStorage（支持多模型）
+    if (urls.length > 1) {
+      sessionStorage.setItem("model-viewer-urls", JSON.stringify(urls))
+      sessionStorage.setItem("model-viewer-index", "0")
+      sessionStorage.removeItem("model-viewer-url")
+    } else {
+      sessionStorage.setItem("model-viewer-url", urls[0] || "")
+      sessionStorage.removeItem("model-viewer-urls")
+      sessionStorage.removeItem("model-viewer-index")
+    }
+
     router.push({
       path: `/${tenantCode}/workbench/model-viewer`,
-      query: { url: task.resultUrl },
     })
   }
 }