diff --git a/backend/services/wallet-service/src/application/event-handlers/withdrawal-status.handler.ts b/backend/services/wallet-service/src/application/event-handlers/withdrawal-status.handler.ts
index b8fb3a98..10622bbc 100644
--- a/backend/services/wallet-service/src/application/event-handlers/withdrawal-status.handler.ts
+++ b/backend/services/wallet-service/src/application/event-handlers/withdrawal-status.handler.ts
@@ -103,12 +103,19 @@ export class WithdrawalStatusHandler implements OnModuleInit {
 
       // Refund frozen funds back to available balance if needed
       if (order.needsUnfreeze()) {
-        const wallet = await this.walletRepo.findByUserId(order.userId.value);
+        // 优先使用 accountSequence 查找钱包（更可靠，避免 userId 变化导致扣错人）
+        let wallet = await this.walletRepo.findByAccountSequence(order.accountSequence);
+        if (!wallet) {
+          // 兜底：使用 userId 查找
+          wallet = await this.walletRepo.findByUserId(order.userId.value);
+        }
         if (wallet) {
           // Unfreeze the amount (add back to available balance)
           wallet.unfreeze(order.amount);
           await this.walletRepo.save(wallet);
-          this.logger.log(`[FAILED] Refunded ${order.amount.value} USDT to user ${order.userId}`);
+          this.logger.log(`[FAILED] Refunded ${order.amount.value} USDT to account ${order.accountSequence}`);
+        } else {
+          this.logger.error(`[FAILED] Wallet not found for accountSequence: ${order.accountSequence}, userId: ${order.userId}`);
         }
       }