diff --git a/apps/desktop/src/components/AiClassificationRealTimePreview.tsx b/apps/desktop/src/components/AiClassificationRealTimePreview.tsx
index 99ad1ae..bd30b23 100644
--- a/apps/desktop/src/components/AiClassificationRealTimePreview.tsx
+++ b/apps/desktop/src/components/AiClassificationRealTimePreview.tsx
@@ -54,6 +54,7 @@ export const AiClassificationRealTimePreview: React.FC<AiClassificationRealTimeP
           description: currentFormData.description || undefined,
           is_active: true,
           sort_order: currentFormData.sort_order,
+          weight: currentFormData.weight,
           created_at: new Date().toISOString(),
           updated_at: new Date().toISOString(),
         };
diff --git a/apps/desktop/src/services/__tests__/aiClassificationService.test.ts b/apps/desktop/src/services/__tests__/aiClassificationService.test.ts
index ae561d1..8f4a5cb 100644
--- a/apps/desktop/src/services/__tests__/aiClassificationService.test.ts
+++ b/apps/desktop/src/services/__tests__/aiClassificationService.test.ts
@@ -28,6 +28,7 @@ describe('AiClassificationService', () => {
     description: '全身分类描述',
     is_active: true,
     sort_order: 1,
+    weight: 10,
     created_at: '2024-01-01T00:00:00Z',
     updated_at: '2024-01-01T00:00:00Z',
   };
diff --git a/apps/desktop/src/types/__tests__/aiClassification.test.ts b/apps/desktop/src/types/__tests__/aiClassification.test.ts
index 68d44f0..766bf8a 100644
--- a/apps/desktop/src/types/__tests__/aiClassification.test.ts
+++ b/apps/desktop/src/types/__tests__/aiClassification.test.ts
@@ -16,6 +16,7 @@ describe('AI Classification Type Functions', () => {
     prompt_text: '头顶到脚底完整入镜，肢体可见度≥90%',
     description: '全身分类描述',
     sort_order: 1,
+    weight: 10,
   };
 
   const mockClassification: AiClassification = {
@@ -25,6 +26,7 @@ describe('AI Classification Type Functions', () => {
     description: '全身分类描述',
     is_active: true,
     sort_order: 1,
+    weight: 10,
     created_at: '2024-01-01T00:00:00Z',
     updated_at: '2024-01-01T00:00:00Z',
   };
@@ -137,6 +139,7 @@ describe('AI Classification Type Functions', () => {
         prompt_text: '',
         description: 'a'.repeat(CLASSIFICATION_VALIDATION.DESCRIPTION_MAX_LENGTH + 1),
         sort_order: -1,
+        weight: 0,
       };
 
       const errors = validateClassificationForm(formData);
diff --git a/apps/desktop/src/types/aiClassification.ts b/apps/desktop/src/types/aiClassification.ts
index 953a8bd..4290bfc 100644
--- a/apps/desktop/src/types/aiClassification.ts
+++ b/apps/desktop/src/types/aiClassification.ts
@@ -115,6 +115,8 @@ export interface AiClassificationFormErrors {
   description?: string;
   /** 排序顺序错误 */
   sort_order?: string;
+  /** 权重错误 */
+  weight?: string;
   /** 通用错误 */
   general?: string;
 }