diff --git a/rc-service/rc-service-other/other-application/src/main/java/com/red/circle/other/app/service/game/YomiGameServiceImpl.java b/rc-service/rc-service-other/other-application/src/main/java/com/red/circle/other/app/service/game/YomiGameServiceImpl.java
index 514a12d7..2d0ba4fd 100644
--- a/rc-service/rc-service-other/other-application/src/main/java/com/red/circle/other/app/service/game/YomiGameServiceImpl.java
+++ b/rc-service/rc-service-other/other-application/src/main/java/com/red/circle/other/app/service/game/YomiGameServiceImpl.java
@@ -59,7 +59,7 @@ import java.util.concurrent.TimeUnit;
 public class YomiGameServiceImpl implements YomiGameService {
 
     private static final String IDEMPOTENT_KEY_PREFIX = "yomi:change_balance:req:";
-    private static final long IDEMPOTENT_EXPIRE_SECONDS = 300L;
+    private static final long IDEMPOTENT_EXPIRE_SECONDS = 600L;
 
     private final YomiConfig yomiConfig;
     private final RedisTemplate<String, String> redisTemplate;
@@ -153,8 +153,12 @@ public class YomiGameServiceImpl implements YomiGameService {
             String processed = redisTemplate.opsForValue().get(idempotentKey);
             if (processed != null) {
                 log.info("yomi余额变动重复请求，直接返回: requestId={}", cmd.getRequestId());
-                long currentBalance = walletGoldClient.getBalance(userId).getBody().getDollarAmount().longValue();
-                return new YomiBalanceCO(currentBalance);
+                ResultResponse<PennyAmount> balanceResp = walletGoldClient.getBalance(userId);
+                if (balanceResp == null || balanceResp.getBody() == null) {
+                    log.warn("yomi幂等返回时查询余额失败: platUserId={}", userId);
+                    return new YomiBalanceCO(0L);
+                }
+                return new YomiBalanceCO(balanceResp.getBody().getDollarAmount().longValue());
             }
 
             WalletReceiptResDTO res = walletGoldClient.changeBalance(createReceipt(cmd)).getBody();