diff --git a/backend/src/main/java/com/designhub/controller/TaskController.java b/backend/src/main/java/com/designhub/controller/TaskController.java
index 2d0cdbc..8e6d553 100644
--- a/backend/src/main/java/com/designhub/controller/TaskController.java
+++ b/backend/src/main/java/com/designhub/controller/TaskController.java
@@ -59,6 +59,11 @@ public class TaskController {
                 ((com.fasterxml.jackson.databind.node.ObjectNode) jsonNode).put("productBarcodes", barcodesString);
             }
             
+            // 处理 isPrimaryDeptTask 字段：如果存在，转换为 isPrimaryTask 或删除（后端会根据用户部门类型自动设置）
+            if (jsonNode.has("isPrimaryDeptTask")) {
+                ((com.fasterxml.jackson.databind.node.ObjectNode) jsonNode).remove("isPrimaryDeptTask");
+            }
+            
             Task task = objectMapper.treeToValue(jsonNode, Task.class);
             log.info("创建任务: {}", task.getTitle());
             task.setPublisherId(userId);