diff --git a/backend/src/main/java/com/designhub/service/DepartmentService.java b/backend/src/main/java/com/designhub/service/DepartmentService.java
index b7f3019..4540965 100644
--- a/backend/src/main/java/com/designhub/service/DepartmentService.java
+++ b/backend/src/main/java/com/designhub/service/DepartmentService.java
@@ -472,13 +472,14 @@ public class DepartmentService {
     }
 
     /**
-     * 获取所有需求部门的ID列表（包括 demand 和 primary_demand 类型）
+     * 获取所有需求部门的ID列表（只包括 demand 类型，不包括 primary_demand）
      * 用于跨部门成员分配功能
+     * 注意：一级需求部门(primary_demand)的成员不应该出现在下拉列表中
      */
     public List<Long> getAllDemandDeptIds() {
         List<Department> demandDepts = departmentMapper.selectList(
             new LambdaQueryWrapper<Department>()
-                .in(Department::getDeptType, "demand", "primary_demand")
+                .eq(Department::getDeptType, "demand")  // 只查询 demand 类型，不包括 primary_demand
                 .eq(Department::getStatus, 1)
                 .eq(Department::getDeleted, 0)
         );
diff --git a/frontend/dist.tar.gz b/frontend/dist.tar.gz
index 1e25c2d..128a563 100644
Binary files a/frontend/dist.tar.gz and b/frontend/dist.tar.gz differ
diff --git a/frontend/src/views/TaskHall.vue b/frontend/src/views/TaskHall.vue
index 5abc4e7..caa79e9 100644
--- a/frontend/src/views/TaskHall.vue
+++ b/frontend/src/views/TaskHall.vue
@@ -5448,8 +5448,9 @@ const handleApprovePrimaryTask = async (task: Task) => {
     let crossDeptAssignEnabled = false
     try {
       const configResponse = await getSystemConfig('primary_dept_cross_dept_assign')
-      crossDeptAssignEnabled = configResponse.data?.configValue === 'true'
-      console.log('跨部门分配功能状态:', crossDeptAssignEnabled)
+      // API 返回的 data 直接是字符串 "true" 或 "false"
+      crossDeptAssignEnabled = configResponse.data === 'true' || configResponse.data === true
+      console.log('跨部门分配功能状态:', crossDeptAssignEnabled, '原始值:', configResponse.data)
     } catch (e) {
       console.log('获取跨部门分配配置失败，使用默认值（关闭）')
     }