diff --git a/Laravel/app/Http/Controllers/API/His/CheckItemController.php b/Laravel/app/Http/Controllers/API/His/CheckItemController.php
index b12a74f..44f2117 100644
--- a/Laravel/app/Http/Controllers/API/His/CheckItemController.php
+++ b/Laravel/app/Http/Controllers/API/His/CheckItemController.php
@@ -100,7 +100,7 @@ public function UpdateCheckItem(){
                     }
                     // 快速查找是否已存在该 item_code
                     if (isset($db_map[$item_code])) {
-                        // 存在则更新
+                        // 存在则更新（check_notice 单独条件更新，不覆盖已有值）
                         DB::table('s_check_item')
                             ->where('item_code', $item_code)
                             ->update([
@@ -110,11 +110,20 @@ public function UpdateCheckItem(){
                                 'item_desc' => $item_name,
                                 'is_del' => 0, // 取消删除标记
                                 'hisExecDepts'=>json_encode($department_arr, JSON_UNESCAPED_UNICODE),
-                                'check_notice'=>$item['docmoTip']
                             ]);
+                        // 仅当库中 check_notice 为空且 HIS 有值时才写入
+                        if (!empty($item['docmoTip'])) {
+                            DB::table('s_check_item')
+                                ->where('item_code', $item_code)
+                                ->where(function ($q) {
+                                    $q->whereNull('check_notice')
+                                      ->orWhere('check_notice', '');
+                                })
+                                ->update(['check_notice' => $item['docmoTip']]);
+                        }
                     } else {
                         // 不存在则插入新记录
-                        DB::table('s_check_item')->insert([
+                        $insertData = [
                             'item_class_id'=>$item_class_id,
                             'sheetType'=>$item['sheetType'],
                             'item_code' => $item_code,
@@ -124,8 +133,12 @@ public function UpdateCheckItem(){
                             'limosis' =>0,
                             'check_time' =>0,
                             'hisExecDepts'=>json_encode($department_arr, JSON_UNESCAPED_UNICODE),
-                            'check_notice'=>$item['docmoTip']
-                        ]);
+                        ];
+                        // 仅当 HIS 有值时才写入 check_notice
+                        if (!empty($item['docmoTip'])) {
+                            $insertData['check_notice'] = $item['docmoTip'];
+                        }
+                        DB::table('s_check_item')->insert($insertData);
 
                        // $this->updateBindDrivers($item_code,$department_arr);自动绑定检查室 ，废弃
                     }