diff --git a/backend/src/main/java/com/designhub/controller/TaskController.java b/backend/src/main/java/com/designhub/controller/TaskController.java
index 3062454..38302a9 100644
--- a/backend/src/main/java/com/designhub/controller/TaskController.java
+++ b/backend/src/main/java/com/designhub/controller/TaskController.java
@@ -153,12 +153,23 @@ public class TaskController {
             boolean hasItems = jsonNode.has("items") && jsonNode.get("items").isArray() && jsonNode.get("items").size() > 0;
             
             if (isPipeline || hasItems) {
-                // 流水线任务更新
-                com.designhub.dto.PipelineTaskDTO dto = objectMapper.convertValue(taskData, com.designhub.dto.PipelineTaskDTO.class);
+                // 流水线任务更新（PipelineTaskDTO 的 productBarcodes 是 List<String>，不需要转换）
+                com.designhub.dto.PipelineTaskDTO dto = objectMapper.treeToValue(jsonNode, com.designhub.dto.PipelineTaskDTO.class);
                 taskService.updatePipelineTask(id, dto, userId);
             } else {
-                // 普通任务更新
-                Task task = objectMapper.convertValue(taskData, Task.class);
+                // 普通任务更新：处理 productBarcodes 字段，如果是数组，转换为逗号分隔的字符串
+                if (jsonNode.has("productBarcodes") && jsonNode.get("productBarcodes").isArray()) {
+                    com.fasterxml.jackson.databind.node.ArrayNode barcodesArray = (com.fasterxml.jackson.databind.node.ArrayNode) jsonNode.get("productBarcodes");
+                    java.util.List<String> barcodesList = new java.util.ArrayList<>();
+                    for (com.fasterxml.jackson.databind.JsonNode barcodeNode : barcodesArray) {
+                        if (barcodeNode.isTextual()) {
+                            barcodesList.add(barcodeNode.asText());
+                        }
+                    }
+                    String barcodesString = String.join(",", barcodesList);
+                    ((com.fasterxml.jackson.databind.node.ObjectNode) jsonNode).put("productBarcodes", barcodesString);
+                }
+                Task task = objectMapper.treeToValue(jsonNode, Task.class);
                 taskService.updateTask(id, task, userId);
             }
         } catch (Exception e) {