diff --git a/server/MiAssessment/src/MiAssessment.Admin.Business/Models/Assessment/QuestionDto.cs b/server/MiAssessment/src/MiAssessment.Admin.Business/Models/Assessment/QuestionDto.cs
index c71996c..b7aa6b2 100644
--- a/server/MiAssessment/src/MiAssessment.Admin.Business/Models/Assessment/QuestionDto.cs
+++ b/server/MiAssessment/src/MiAssessment.Admin.Business/Models/Assessment/QuestionDto.cs
@@ -45,6 +45,11 @@ public class QuestionDto
     /// </summary>
     public string StatusName { get; set; } = string.Empty;
 
+    /// <summary>
+    /// 关联的分类数量
+    /// </summary>
+    public int CategoryCount { get; set; }
+
     /// <summary>
     /// 创建时间
     /// </summary>
diff --git a/server/MiAssessment/src/MiAssessment.Admin.Business/Services/AssessmentService.cs b/server/MiAssessment/src/MiAssessment.Admin.Business/Services/AssessmentService.cs
index 4bcc94f..034580a 100644
--- a/server/MiAssessment/src/MiAssessment.Admin.Business/Services/AssessmentService.cs
+++ b/server/MiAssessment/src/MiAssessment.Admin.Business/Services/AssessmentService.cs
@@ -344,7 +344,7 @@ public class AssessmentService : IAssessmentService
         var total = await query.CountAsync();
 
         // 分页查询，按 QuestionNo 升序排列
-        var items = await query
+        var questions = await query
             .OrderBy(q => q.QuestionNo)
             .ThenByDescending(q => q.CreateTime)
             .Skip(request.Skip)
@@ -363,7 +363,23 @@ public class AssessmentService : IAssessmentService
             })
             .ToListAsync();
 
-        return PagedResult<QuestionDto>.Create(items, total, request.Page, request.PageSize);
+        // 获取这些题目的分类数量
+        if (questions.Count > 0)
+        {
+            var questionIds = questions.Select(q => q.Id).ToList();
+            var categoryCounts = await _dbContext.QuestionCategoryMappings
+                .Where(m => questionIds.Contains(m.QuestionId))
+                .GroupBy(m => m.QuestionId)
+                .Select(g => new { QuestionId = g.Key, Count = g.Count() })
+                .ToDictionaryAsync(x => x.QuestionId, x => x.Count);
+
+            foreach (var question in questions)
+            {
+                question.CategoryCount = categoryCounts.TryGetValue(question.Id, out var count) ? count : 0;
+            }
+        }
+
+        return PagedResult<QuestionDto>.Create(questions, total, request.Page, request.PageSize);
     }
 
     /// <inheritdoc />
diff --git a/server/MiAssessment/src/MiAssessment.Admin/admin-web/src/api/business/assessment.ts b/server/MiAssessment/src/MiAssessment.Admin/admin-web/src/api/business/assessment.ts
index 61cc5a4..9955fb0 100644
--- a/server/MiAssessment/src/MiAssessment.Admin/admin-web/src/api/business/assessment.ts
+++ b/server/MiAssessment/src/MiAssessment.Admin/admin-web/src/api/business/assessment.ts
@@ -97,8 +97,8 @@ export interface QuestionItem {
   sort: number
   /** 状态 (0: 禁用, 1: 启用) */
   status: number
-  /** 关联的分类ID列表 */
-  categoryIds: number[]
+  /** 关联的分类数量 */
+  categoryCount: number
 }
 
 /**
@@ -219,6 +219,24 @@ export interface MappingItem {
   categoryId: number
 }
 
+/**
+ * 映射关系中的分类信息
+ */
+export interface MappingCategoryDto {
+  /** 分类ID */
+  id: number
+  /** 分类名称 */
+  name: string
+  /** 分类编码 */
+  code: string
+  /** 分类类型：1-8 */
+  categoryType: number
+  /** 分类类型名称 */
+  categoryTypeName: string
+  /** 映射创建时间 */
+  mappingCreateTime: string
+}
+
 /**
  * 批量更新映射请求
  */
@@ -482,10 +500,10 @@ export function deleteCategory(id: number): Promise<ApiResponse<boolean>> {
 /**
  * 获取题目的分类映射
  * @param questionId 题目ID
- * @returns 分类ID列表
+ * @returns 分类信息列表
  */
-export function getMappingsByQuestion(questionId: number): Promise<ApiResponse<number[]>> {
-  return request<number[]>({
+export function getMappingsByQuestion(questionId: number): Promise<ApiResponse<MappingCategoryDto[]>> {
+  return request<MappingCategoryDto[]>({
     url: '/admin/assessment/mapping/getByQuestion',
     method: 'get',
     params: { questionId }
diff --git a/server/MiAssessment/src/MiAssessment.Admin/admin-web/src/views/business/assessment/question/index.vue b/server/MiAssessment/src/MiAssessment.Admin/admin-web/src/views/business/assessment/question/index.vue
index fe74fdd..0dfb27f 100644
--- a/server/MiAssessment/src/MiAssessment.Admin/admin-web/src/views/business/assessment/question/index.vue
+++ b/server/MiAssessment/src/MiAssessment.Admin/admin-web/src/views/business/assessment/question/index.vue
@@ -95,7 +95,7 @@
         <el-table-column label="分类映射" width="120" align="center">
           <template #default="{ row }">
             <el-button type="primary" link size="small" @click="handleCategoryMapping(row)">
-              <span class="category-count">{{ row.categoryIds?.length || 0 }}</span>
+              <span class="category-count">{{ row.categoryCount || 0 }}</span>
               <span>个分类</span>
             </el-button>
           </template>
@@ -583,7 +583,8 @@ async function loadQuestionMappings(questionId: number) {
   try {
     const res = await getMappingsByQuestion(questionId)
     if (res.code === 0) {
-      state.selectedCategoryIds = res.data || []
+      // 从返回的分类对象数组中提取分类ID
+      state.selectedCategoryIds = (res.data || []).map(item => item.id)
     }
   } catch (error) {
     console.error('Failed to load question mappings:', error)