diff --git a/backend/services/identity-service/src/application/tasks/wallet-retry.task.ts b/backend/services/identity-service/src/application/tasks/wallet-retry.task.ts
index 53f42819..efb9d278 100644
--- a/backend/services/identity-service/src/application/tasks/wallet-retry.task.ts
+++ b/backend/services/identity-service/src/application/tasks/wallet-retry.task.ts
@@ -43,6 +43,9 @@ const MAX_BACKOFF_MINUTES = 60; // 最大退避时间：60分钟
 // 每次扫描的最大用户数
 const MAX_USERS_PER_SCAN = 100;
 
+// 每次任务最多触发的重试数量（防止 MPC 服务过载）
+const MAX_RETRIES_PER_RUN = 10;
+
 export interface KeygenStatusData {
   status: 'pending' | 'generating' | 'deriving' | 'completed' | 'failed';
   userId: string;
@@ -112,6 +115,14 @@ export class WalletRetryTask {
       let skippedCount = 0;
 
       for (const userId of incompleteUserIds) {
+        // 限制每次任务最多触发的重试数量，防止 MPC 服务过载
+        if (retriedCount >= MAX_RETRIES_PER_RUN) {
+          this.logger.log(
+            `[TASK] Reached max retries per run (${MAX_RETRIES_PER_RUN}), stopping`,
+          );
+          break;
+        }
+
         try {
           const retried = await this.checkAndRetryUser(userId.value.toString());
           if (retried) {