diff --git a/src/api/match/usereventregistration.js b/src/api/match/usereventregistration.js
index ce9afa3..9c79f92 100644
--- a/src/api/match/usereventregistration.js
+++ b/src/api/match/usereventregistration.js
@@ -329,3 +329,18 @@ export const usereventregistrationCheckGroupSelectionLimitPost = (data) => {
    return http.post('/usereventregistration/check-group-selection-limit', data);
 };
 
+/**
+* 验证用户报名状态
+* @param {Object} data - 验证信息
+* @param {number} data.eventId - 赛事ID
+* @returns {Promise<{
+*   isRegistered: boolean,
+*   registrationId: number,
+*   registrationStatus: string,
+*   message: string
+* }>}
+*/
+export const usereventregistrationRegistrationStatusCheckPost = (data) => {
+   return http.post('/usereventregistration/registration-status/check', data);
+};
+
diff --git a/src/views/user/registration/index.vue b/src/views/user/registration/index.vue
index 08c2d4d..a722599 100644
--- a/src/views/user/registration/index.vue
+++ b/src/views/user/registration/index.vue
@@ -452,6 +452,7 @@ import {
 	usereventregistrationRegistrationLimitCheckPost,
 	usereventregistrationGroupTeamLimitGet,
 	usereventregistrationOrderStatusGet,
+	usereventregistrationRegistrationStatusCheckPost,
 } from '/@/api/match/usereventregistration';
 import { teamPageGet, teamDetailGet } from '/@/api/match/unitUser';
 import QRCode from 'qrcodejs2-fixes';
@@ -997,6 +998,21 @@ const openRegistrationDialog = async (row) => {
 	registerLoading.value = true;
 
 	try {
+		// 首先验证用户是否已报名该赛事
+		const checkStatusRes = await usereventregistrationRegistrationStatusCheckPost({ eventId });
+		if (checkStatusRes.succeeded && checkStatusRes.data?.isRegistered) {
+			// 如果已报名，显示提示并阻止继续
+			ElMessageBox.alert(
+				checkStatusRes.data.message || '您已报名该赛事，请先取消报名后再重新报名',
+				'提示',
+				{
+					confirmButtonText: '确定',
+					type: 'warning'
+				}
+			);
+			return;
+		}
+
 		const { succeeded, data } = await usereventregistrationDetailGet(eventId);
 		if (!succeeded) {
 			ElMessage.error(data ?? '项目加载失败');
@@ -1022,7 +1038,8 @@ const openRegistrationDialog = async (row) => {
 		projects.value = Array.isArray(data?.projects) ? data.projects : [];
 		isShowRegisterDialog.value = true;
 		activeStep.value = 0;
-	} catch {
+	} catch (error) {
+		console.error('打开报名弹窗失败:', error);
 		ElMessage.error('项目加载失败');
 	} finally {
 		registerLoading.value = false;