diff --git a/frontend/src/api/plan/plan.ts b/frontend/src/api/plan/plan.ts
index a1bcbd8..dbe434d 100644
--- a/frontend/src/api/plan/plan.ts
+++ b/frontend/src/api/plan/plan.ts
@@ -148,4 +148,9 @@ export const importSubPlanCheckData = (params: Plan.ResPlan) => {
 // 合并子检测计划检测结果数据
 export const mergeSubPlanCheckData = (params: Plan.ResPlan) => {
     return http.upload(`/adPlan/mergePlanCheckData?planId=${params.id}`)
+}
+
+//根据误差体系id获取测试项
+export const getPqErrSysTestItemList = (params: Plan.ResPlan) => {
+    return http.get(`/pqErrSys/getTestItems?id=${params.errorSysId}`)
 }
\ No newline at end of file
diff --git a/frontend/src/views/plan/planList/components/planPopup.vue b/frontend/src/views/plan/planList/components/planPopup.vue
index 75f8582..6a0c81d 100644
--- a/frontend/src/views/plan/planList/components/planPopup.vue
+++ b/frontend/src/views/plan/planList/components/planPopup.vue
@@ -122,6 +122,7 @@
                             clearable
                             filterable
                             placeholder="请选择误差体系"
+                             @change="handleErrorSysChange"
                         >
                             <el-option
                                 v-for="(option, index) in pqErrorArray"
@@ -382,7 +383,8 @@ import {
     getPqScriptList,
     getTestSourceList,
     getUnboundPqDevList,
-    updatePlan
+    updatePlan,
+    getPqErrSysTestItemList
 } from '@/api/plan/plan.ts'
 import { useDictStore } from '@/stores/modules/dict'
 import { type TestSource } from '@/api/device/interface/testSource'
@@ -402,6 +404,7 @@ import { downloadTemplate, importPqDev } from '@/api/device/device/index'
 import { getTestConfig } from '@/api/system/base'
 import { getRegRes } from '@/api/system/versionRegister'
 
+
 const modeStore = useModeStore()
 const AppSceneStore = useAppSceneStore()
 const dictStore = useDictStore()
@@ -706,6 +709,7 @@ const save = () => {
 
 // 打开弹窗，可能是新增，也可能是编辑
 const open = async (sign: string, data: Plan.ReqPlan, currentMode: string, plan: number) => {
+
     unboundPqDevList.value = []
     boundPqDevList.value = []
     //处理异步调用
@@ -715,27 +719,6 @@ const open = async (sign: string, data: Plan.ReqPlan, currentMode: string, plan:
     titleType.value = sign
     isSelectDisabled.value = false
     planType.value = plan
-    console.log('planType.value', planType.value)
-    //比对式测试项下拉框
-    if (mode.value == '比对式') {
-        const dictCode = 'Script_Error'
-        const resDictTree: Dict.ResDictTree = {
-            name: '',
-            id: '',
-            pid: '',
-            pids: '',
-            code: dictCode,
-            sort: 0
-        }
-        const result = await getDictTreeByCode(resDictTree)
-        const allOptions = convertToOptions(result.data as Dict.ResDictTree[])
-        // 提取第二层节点
-        allOptions.forEach(option => {
-            if (option.children && option.children.length > 0) {
-                secondLevelOptions.push(...option.children)
-            }
-        })
-    }
 
     if (sign == 'add') {
         resetFormContent()
@@ -810,6 +793,9 @@ const open = async (sign: string, data: Plan.ReqPlan, currentMode: string, plan:
         formContent.sourceIds = pqSourceList.value[0]?.id ?? ''
         formContent.datasourceIds = dictStore.getDictData('Datasource')[0]?.code ?? ''
         formContent.dataRule = dictStore.getDictData('Data_Rule')[0]?.id ?? ''
+
+      
+
     } else {
         //编辑时先给表单赋值（这会没接收被检设备），需要手动再给被检设备复制后整体表单赋值
 
@@ -925,6 +911,16 @@ const open = async (sign: string, data: Plan.ReqPlan, currentMode: string, plan:
 
     pqToArray() //将对象转为数组
 
+
+    //比对式测试项下拉框
+    if (mode.value == '比对式') {
+        // 如果是编辑模式且已有误差体系ID，则加载对应的测试项
+        if (formContent.errorSysId) {
+            await loadTestItemsForErrorSys(formContent.errorSysId);
+        }
+    }
+
+
     if (mode.value != '比对式') {
         selectByMode.value = false
         // 将 formContent.sourceIds 从数组转换为字符串
@@ -961,6 +957,63 @@ const open = async (sign: string, data: Plan.ReqPlan, currentMode: string, plan:
     dialogVisible.value = true
 }
 
+// 误差体系选择变化时的处理函数
+const handleErrorSysChange = async (value: string) => {
+    // 清空测试项选择
+    formContent.testItems = [];
+    
+    // 如果是比对式模式且选择了误差体系
+    if (mode.value === '比对式' && value) {
+        try {
+            const res = await getPqErrSysTestItemList({ errorSysId: value });
+            // 清空原有选项
+            secondLevelOptions.length = 0;
+
+            if (res.data) {
+                // 将返回的键值对对象转换为下拉选项格式
+                Object.keys(res.data).forEach(key => {
+                    secondLevelOptions.push({
+                        value: key,
+                        label: res.data[key]
+                    });
+                });
+            }
+        } catch (error) {
+            console.error('获取测试项失败:', error);
+            // 发生错误时清空选项
+            secondLevelOptions.length = 0;
+        }
+    } else {
+        // 如果没有选择误差体系，清空测试项选项
+        secondLevelOptions.length = 0;
+    }
+}
+
+
+// 根据误差体系ID加载测试项（用于初始化）
+const loadTestItemsForErrorSys = async (errorSysId: string) => {
+    if (!errorSysId) return;
+    
+    try {
+        const res = await getPqErrSysTestItemList({ errorSysId: errorSysId });
+        // 清空原有选项
+        secondLevelOptions.length = 0;
+
+        if (res.data) {
+            // 将返回的键值对对象转换为下拉选项格式
+            Object.keys(res.data).forEach(key => {
+                secondLevelOptions.push({
+                    value: key,
+                    label: res.data[key]
+                });
+            });
+        }
+    } catch (error) {
+        console.error('获取测试项失败:', error);
+        secondLevelOptions.length = 0;
+    }
+}
+
 // 转换函数
 const convertToOptions = (dictTree: Dict.ResDictTree[]): CascaderOption[] => {
     return dictTree.map(item => ({