diff --git a/bonus-modules/bonus-smart-canteen/src/main/java/com/bonus/canteen/core/account/service/impl/AccCardServiceImpl.java b/bonus-modules/bonus-smart-canteen/src/main/java/com/bonus/canteen/core/account/service/impl/AccCardServiceImpl.java
index 8392638..66347c6 100644
--- a/bonus-modules/bonus-smart-canteen/src/main/java/com/bonus/canteen/core/account/service/impl/AccCardServiceImpl.java
+++ b/bonus-modules/bonus-smart-canteen/src/main/java/com/bonus/canteen/core/account/service/impl/AccCardServiceImpl.java
@@ -14,6 +14,7 @@ import com.bonus.canteen.core.account.mapper.AccInfoMapper;
 import com.bonus.canteen.core.account.service.IAccCardService;
 import com.bonus.common.core.exception.ServiceException;
 import com.bonus.common.core.utils.DateUtils;
+import com.bonus.common.core.utils.StringUtils;
 import com.bonus.common.security.utils.SecurityUtils;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
@@ -130,6 +131,9 @@ public class AccCardServiceImpl implements IAccCardService {
         try {
             // 发卡前校验是否卡号已存在, 卡号不能重复
             if (CardRecordTypeEnum.CHANGE.getKey().equals(accountCard.getOperationType())) {
+                if (StringUtils.isEmpty(accountCard.getNewSerialNum())) {
+                    throw new ServiceException("新卡号不能为空");
+                }
                 int cardCountByCardSerialNum= accCardMapper.selectAccCardCountByCardSerialNum(accountCard.getNewSerialNum());
                 if (cardCountByCardSerialNum > 0) {
                     throw new ServiceException("卡号已存在, 卡号不能重复");