diff --git a/backend/src/main/java/com/designhub/service/AnalyticsService.java b/backend/src/main/java/com/designhub/service/AnalyticsService.java
index 6ad702a..9880c24 100644
--- a/backend/src/main/java/com/designhub/service/AnalyticsService.java
+++ b/backend/src/main/java/com/designhub/service/AnalyticsService.java
@@ -2052,6 +2052,17 @@ public class AnalyticsService {
         Map<Long, String> deptNames = departments.stream()
             .collect(Collectors.toMap(d -> d.getId(), d -> d.getDeptName(), (a, b) -> a));
         
+        // 🔥 获取每个部门的人数
+        Map<Long, Integer> deptMemberCounts = new HashMap<>();
+        for (Long deptId : tasksByDept.keySet()) {
+            // 查询该部门及其子部门的所有用户数量
+            List<Long> deptAndChildIds = getDeptAndChildIds(deptId);
+            Long memberCount = userMapper.selectCount(new LambdaQueryWrapper<User>()
+                .in(User::getDeptId, deptAndChildIds)
+                .eq(User::getStatus, 1)); // 只统计启用状态的用户
+            deptMemberCounts.put(deptId, memberCount.intValue());
+        }
+        
         for (Map.Entry<Long, List<Task>> entry : tasksByDept.entrySet()) {
             Long deptId = entry.getKey();
             List<Task> deptTasks = entry.getValue();
@@ -2061,6 +2072,18 @@ public class AnalyticsService {
             analysis.setDeptName(deptNames.getOrDefault(deptId, "未知部门"));
             analysis.setTotalTasks(deptTasks.size());
             
+            // 🔥 设置部门人数
+            int memberCount = deptMemberCounts.getOrDefault(deptId, 0);
+            analysis.setMemberCount(memberCount);
+            
+            // 🔥 计算人均任务数
+            if (memberCount > 0) {
+                analysis.setAvgTasksPerMember(BigDecimal.valueOf((double) deptTasks.size() / memberCount)
+                    .setScale(2, RoundingMode.HALF_UP));
+            } else {
+                analysis.setAvgTasksPerMember(BigDecimal.ZERO);
+            }
+            
             long completedCount = deptTasks.stream()
                 .filter(t -> "completed".equals(t.getStatus()))
                 .count();
diff --git a/backend/src/main/java/com/designhub/vo/DimensionAnalysisVO.java b/backend/src/main/java/com/designhub/vo/DimensionAnalysisVO.java
index f6f2ab6..8c6eb4b 100644
--- a/backend/src/main/java/com/designhub/vo/DimensionAnalysisVO.java
+++ b/backend/src/main/java/com/designhub/vo/DimensionAnalysisVO.java
@@ -98,7 +98,9 @@ public class DimensionAnalysisVO {
     public static class ReceivingDeptAnalysis {
         private Long deptId;
         private String deptName;
+        private Integer memberCount;             // 部门总人数
         private Integer totalTasks;              // 总接单数（主任务+子任务）
+        private BigDecimal avgTasksPerMember;    // 人均任务数
         private Integer completedTasks;          // 已完成任务数
         private Integer inProgressTasks;         // 进行中任务数
         private Integer pendingTasks;            // 待接单任务数
diff --git a/frontend/src/views/Analytics.vue b/frontend/src/views/Analytics.vue
index fbae3ea..c2eb749 100644
--- a/frontend/src/views/Analytics.vue
+++ b/frontend/src/views/Analytics.vue
@@ -499,7 +499,7 @@
                       :columns="receivingDeptColumns"
                       :data-source="dimensionData.receivingDeptAnalysis"
                       :pagination="{ pageSize: 10 }"
-                      :scroll="{ x: 900 }"
+                      :scroll="{ x: 1000 }"
                       row-key="deptId"
                       size="middle"
                       class="dark-table"
@@ -508,6 +508,9 @@
                         <template v-if="column.key === 'totalScore'">
                           <span class="score-value">{{ formatScore(record.totalScore) }}</span>
                         </template>
+                        <template v-else-if="column.key === 'avgTasksPerMember'">
+                          <span class="score-value">{{ formatScore(record.avgTasksPerMember) }}</span>
+                        </template>
                         <template v-else-if="column.key === 'completionRate'">
                           <span :class="record.completionRate >= 80 ? 'text-success' : record.completionRate >= 50 ? 'text-warning' : 'text-danger'">
                             {{ formatScore(record.completionRate) }}%
@@ -977,7 +980,9 @@ const brandColumns = [
 
 const receivingDeptColumns = [
   { title: '部门名称', dataIndex: 'deptName', key: 'deptName', ellipsis: true },
+  { title: '部门人数', dataIndex: 'memberCount', key: 'memberCount', align: 'center', width: 80 },
   { title: '任务数', dataIndex: 'totalTasks', key: 'totalTasks', align: 'center', width: 70 },
+  { title: '人均任务', key: 'avgTasksPerMember', align: 'center', width: 80 },
   { title: '总数量', dataIndex: 'totalQuantity', key: 'totalQuantity', align: 'center', width: 70 },
   { title: '已完成', dataIndex: 'completedTasks', key: 'completedTasks', align: 'center', width: 70 },
   { title: '进行中', dataIndex: 'inProgressTasks', key: 'inProgressTasks', align: 'center', width: 70 },