diff --git a/openhis-ui-vue3/src/views/inpatientDoctor/home/components/order/applicationForm/laboratoryTests.vue b/openhis-ui-vue3/src/views/inpatientDoctor/home/components/order/applicationForm/laboratoryTests.vue
index 23ff2965..6c8fe53c 100755
--- a/openhis-ui-vue3/src/views/inpatientDoctor/home/components/order/applicationForm/laboratoryTests.vue
+++ b/openhis-ui-vue3/src/views/inpatientDoctor/home/components/order/applicationForm/laboratoryTests.vue
@@ -244,6 +244,8 @@ const getList = async () => {
 const handleSearch = () => {
   // 搜索时保持已选中的项目不受影响
 };
+// 编辑初始化标志：避免 applyEditTransferSelection 设置 transferValue 时触发 projectWithDepartment 覆盖 descJson 中的科室值
+const isInitializing = ref(false);
 const transferValue = ref([]);
 const form = reactive({
   // categoryType: '', // 项目类别
@@ -341,6 +343,7 @@ const projectWithDepartment = (selectProjectIds, type) => {
 watch(
   () => transferValue.value,
   (newValue) => {
+    if (isInitializing.value) return;
     projectWithDepartment(newValue, 1);
   }
 );
@@ -377,7 +380,10 @@ const applyEditTransferSelection = () => {
     }
   }
   const uniq = [...new Set(selectedIds)]
+  // 设置初始化标志，防止 transferValue 变化触发 projectWithDepartment 覆盖 descJson 中的科室值
+  isInitializing.value = true
   transferValue.value = uniq
+  isInitializing.value = false
   if (newData.requestFormDetailList.length && uniq.length === 0) {
     console.warn(
       '[LaboratoryTests] 申请单明细未能在项目字典中匹配到项，请核对 activityId / 项目名称',
@@ -427,7 +433,9 @@ watch(
         selectedIds.push(matched.adviceDefinitionId);
       }
     });
+    isInitializing.value = true;
     transferValue.value = selectedIds;
+    isInitializing.value = false;
   }
 );