diff --git a/src/views/gxmu/declare/components/declareEdit.vue b/src/views/gxmu/declare/components/declareEdit.vue
index 54a07b8..c5f29d6 100644
--- a/src/views/gxmu/declare/components/declareEdit.vue
+++ b/src/views/gxmu/declare/components/declareEdit.vue
@@ -182,6 +182,10 @@
   import { storeToRefs } from 'pinia';
   import { FormInstance } from 'ant-design-vue/es/form';
   import { DECLARE_MODULE_OPTIONS } from '../moduleOptions';
+  import {
+    TZBCY_PROJECT_GROUP_OPTIONS,
+    TZBCY_PROJECT_TYPE_OPTIONS
+  } from '../../TZBCYForm/options';
   import {
     normalizeDeclareRecord,
     stringifyDeclareMultiValueField
@@ -273,29 +277,68 @@
   const { resetFields } = useForm(form, rules);
   const isTzbcyModule = computed(() => form.module === 'gxmu_tzbcy_form');
 
+  /**
+   * 挑战杯模块的默认配置
+   * 与挑战杯申报表共用 TZBCYForm/options 中的同一份常量，避免两处维护产生漂移
+   */
+  type ChallengeCupConfigKey =
+    | 'formProjectType'
+    | 'formProjectGroup'
+    | 'publicProjectType'
+    | 'publicProjectGroup';
+
+  const CHALLENGE_CUP_CONFIG_KEYS: ChallengeCupConfigKey[] = [
+    'formProjectType',
+    'formProjectGroup',
+    'publicProjectType',
+    'publicProjectGroup'
+  ];
+
+  const toOptionValues = (options: readonly { value: string }[]) =>
+    options.map((item) => item.value);
+
+  const getChallengeCupDefaultConfig = (
+    key: ChallengeCupConfigKey
+  ): string[] => {
+    switch (key) {
+      case 'formProjectType':
+      case 'publicProjectType':
+        return toOptionValues(TZBCY_PROJECT_TYPE_OPTIONS);
+      default:
+        return toOptionValues(TZBCY_PROJECT_GROUP_OPTIONS);
+    }
+  };
+
+  // 列表是否为空（没有任意一个有效值，空行不算）
+  const isBlankConfigList = (list?: string[]) =>
+    !(list || []).some((item) => !!item?.trim());
+
+  // 仅填充空配置，已有的配置（含用户手动编辑过的内容）保持不变
+  const fillBlankConfigWithDefault = () => {
+    CHALLENGE_CUP_CONFIG_KEYS.forEach((key) => {
+      if (isBlankConfigList(form[key])) {
+        form[key] = getChallengeCupDefaultConfig(key);
+      }
+    });
+  };
+
+  // 选中挑战杯模块时套用默认配置
+  const applyChallengeCupPreset = () => {
+    if (isTzbcyModule.value) {
+      fillBlankConfigWithDefault();
+    }
+  };
+
   const normalizeEditableList = (list?: string[]) => {
     const values = (list || []).map((item) => item?.trim() || '').filter(Boolean);
     return values.length ? values : [''];
   };
 
-  const addConfigRow = (
-    key:
-      | 'formProjectType'
-      | 'formProjectGroup'
-      | 'publicProjectType'
-      | 'publicProjectGroup'
-  ) => {
+  const addConfigRow = (key: ChallengeCupConfigKey) => {
     form[key].push('');
   };
 
-  const removeConfigRow = (
-    key:
-      | 'formProjectType'
-      | 'formProjectGroup'
-      | 'publicProjectType'
-      | 'publicProjectGroup',
-    index: number
-  ) => {
+  const removeConfigRow = (key: ChallengeCupConfigKey, index: number) => {
     form[key].splice(index, 1);
     if (!form[key].length) {
       form[key].push('');
@@ -418,6 +461,8 @@
           );
           yearValue.value = props.data.year ? String(props.data.year) : undefined;
           isUpdate.value = true;
+          // 历史记录若未配置过挑战杯配置，补上默认值；已配置的记录保持原样
+          applyChallengeCupPreset();
         } else {
           Object.assign(form, createDefaultForm());
           isUpdate.value = false;
@@ -435,14 +480,15 @@
   watch(
     () => form.module,
     (value) => {
-      if (value !== 'gxmu_tzbcy_form') {
-        form.projectType = [];
-        form.projectGroup = [];
-        form.formProjectType = [''];
-        form.formProjectGroup = [''];
-        form.publicProjectType = [''];
-        form.publicProjectGroup = [''];
+      if (value === 'gxmu_tzbcy_form') {
+        // 选中挑战杯模块时预填项目申报表 / 公开展示信息表的默认配置
+        applyChallengeCupPreset();
+        return;
       }
+      // 切到其他模块时不清空配置，避免用户手滑切换后已编辑的内容丢失
+      // （非挑战杯模块不会展示也不会提交这些字段）
+      form.projectType = [];
+      form.projectGroup = [];
     }
   );
 </script>