diff --git a/backend/src/main/java/com/designhub/controller/ExportController.java b/backend/src/main/java/com/designhub/controller/ExportController.java
index e790475..79c2ba3 100644
--- a/backend/src/main/java/com/designhub/controller/ExportController.java
+++ b/backend/src/main/java/com/designhub/controller/ExportController.java
@@ -39,6 +39,7 @@ public class ExportController {
         HttpServletRequest request,
         HttpServletResponse response,
         @Parameter(description = "任务状态") @RequestParam(required = false) String status,
+        @Parameter(description = "月份，格式：YYYY-MM") @RequestParam(required = false) String month,
         @Parameter(description = "发布部门ID") @RequestParam(required = false) Long publisherDeptId,
         @Parameter(description = "接收部门ID") @RequestParam(required = false) Long receiverDeptId,
         @Parameter(description = "品牌ID") @RequestParam(required = false) Long brandId,
@@ -68,7 +69,7 @@ public class ExportController {
         log.info("用户 {} ({}) 导出任务大厅数据, isAdmin={}, isDeptLeader={}", 
             user.getRealName(), userId, isAdmin, isDeptLeader);
         
-        exportService.exportTaskHall(response, status, publisherDeptId, receiverDeptId, brandId, categoryId, platformId);
+        exportService.exportTaskHall(response, status, month, publisherDeptId, receiverDeptId, brandId, categoryId, platformId);
     }
 
     @Operation(summary = "导出任务列表")
@@ -103,4 +104,3 @@ public class ExportController {
         exportService.exportDesignerStats(response);
     }
 }
-
diff --git a/backend/src/main/java/com/designhub/service/ExportService.java b/backend/src/main/java/com/designhub/service/ExportService.java
index cd4f97a..da899b0 100644
--- a/backend/src/main/java/com/designhub/service/ExportService.java
+++ b/backend/src/main/java/com/designhub/service/ExportService.java
@@ -11,7 +11,9 @@ import lombok.extern.slf4j.Slf4j;
 import org.springframework.stereotype.Service;
 
 import java.io.IOException;
+import java.time.LocalDate;
 import java.time.LocalDateTime;
+import java.time.LocalTime;
 import java.time.format.DateTimeFormatter;
 import java.util.ArrayList;
 import java.util.HashMap;
@@ -46,16 +48,32 @@ public class ExportService {
      * 🔥 修复：按子任务行导出，与前端任务大厅显示一致
      * 前端显示的是每个可接单的子任务，导出也应该按子任务行导出
      */
-    public void exportTaskHall(HttpServletResponse response, String status, Long publisherDeptId, 
+    public void exportTaskHall(HttpServletResponse response, String status, String month, Long publisherDeptId,
                                 Long receiverDeptId, Long brandId, Long categoryId, Long platformId) throws IOException {
-        log.info("开始导出任务大厅数据: status={}, publisherDeptId={}, receiverDeptId={}, brandId={}, categoryId={}, platformId={}",
-            status, publisherDeptId, receiverDeptId, brandId, categoryId, platformId);
-        
-        String effectiveStatus = (status != null && !status.isEmpty()) ? status : "pending";
+        log.info("开始导出任务大厅数据: status={}, month={}, publisherDeptId={}, receiverDeptId={}, brandId={}, categoryId={}, platformId={}",
+            status, month, publisherDeptId, receiverDeptId, brandId, categoryId, platformId);
+
+        LocalDateTime monthStart = null;
+        LocalDateTime monthEnd = null;
+        if (month != null && !month.isBlank()) {
+            try {
+                LocalDate targetMonth = LocalDate.parse(month + "-01", DateTimeFormatter.ofPattern("yyyy-MM-dd"));
+                monthStart = LocalDateTime.of(targetMonth, LocalTime.MIN);
+                monthEnd = monthStart.plusMonths(1).minusSeconds(1);
+            } catch (Exception e) {
+                log.warn("导出任务大厅数据月份格式错误: {}", month);
+            }
+        }
         
         // 🔥 查询可接单的子任务（这是前端任务大厅实际显示的数据）
         LambdaQueryWrapper<TaskItem> itemQueryWrapper = new LambdaQueryWrapper<>();
-        itemQueryWrapper.eq(TaskItem::getStatus, effectiveStatus);
+        if (status != null && !status.isBlank() && !"all".equalsIgnoreCase(status)) {
+            itemQueryWrapper.eq(TaskItem::getStatus, status);
+        }
+        if (monthStart != null && monthEnd != null) {
+            itemQueryWrapper.ge(TaskItem::getCreateTime, monthStart)
+                .le(TaskItem::getCreateTime, monthEnd);
+        }
         if (receiverDeptId != null) {
             itemQueryWrapper.eq(TaskItem::getReceiverDeptId, receiverDeptId);
         }
@@ -150,7 +168,11 @@ public class ExportService {
             taskItemsMap.put(virtualId, List.of(correspondingItem));
             virtualTaskToItemMap.put(virtualId, correspondingItem);
         }
-        Map<Long, String> taskActualReceiverDeptListMap = buildTaskActualReceiverDeptListMap(filteredItems, deptMap);
+        List<TaskItem> allTaskItems = taskIds.isEmpty() ? List.of() : taskItemMapper.selectList(
+            new LambdaQueryWrapper<TaskItem>()
+                .in(TaskItem::getTaskId, taskIds)
+        );
+        Map<Long, String> taskActualReceiverDeptListMap = buildTaskActualReceiverDeptListMap(allTaskItems, deptMap);
         
         // 🔥 第一遍遍历：收集所有出现的任务类型名称（用于动态列）
         java.util.LinkedHashSet<String> allTypeNames = new java.util.LinkedHashSet<>();
diff --git a/frontend/src/api/task.ts b/frontend/src/api/task.ts
index 53c23ba..7ff76ca 100644
--- a/frontend/src/api/task.ts
+++ b/frontend/src/api/task.ts
@@ -721,6 +721,7 @@ export const deleteTaskByTaskNo = (taskNo: string) => {
  */
 export interface ExportTaskHallParams {
   status?: string
+  month?: string
   publisherDeptId?: number
   receiverDeptId?: number
   brandId?: number
@@ -731,6 +732,7 @@ export interface ExportTaskHallParams {
 export const exportTaskHall = async (params: ExportTaskHallParams = {}) => {
   const queryParams = new URLSearchParams()
   if (params.status) queryParams.append('status', params.status)
+  if (params.month) queryParams.append('month', params.month)
   if (params.publisherDeptId) queryParams.append('publisherDeptId', params.publisherDeptId.toString())
   if (params.receiverDeptId) queryParams.append('receiverDeptId', params.receiverDeptId.toString())
   if (params.brandId) queryParams.append('brandId', params.brandId.toString())
diff --git a/frontend/src/views/TaskHall.vue b/frontend/src/views/TaskHall.vue
index 4dd46e3..3b72093 100644
--- a/frontend/src/views/TaskHall.vue
+++ b/frontend/src/views/TaskHall.vue
@@ -4745,7 +4745,8 @@ const handleExportTaskHall = async () => {
     
     // 构建导出参数（使用当前筛选条件）
     const params: ExportTaskHallParams = {
-      status: filters.status || 'pending',
+      status: filters.status || undefined,
+      month: selectedMonth.value ? selectedMonth.value.format('YYYY-MM') : undefined,
       brandId: filters.brandId,
       categoryId: filters.categoryId,
       platformId: filters.platformId