diff --git a/jsowell-pile/src/main/java/com/jsowell/pile/service/impl/PileMerchantInfoServiceImpl.java b/jsowell-pile/src/main/java/com/jsowell/pile/service/impl/PileMerchantInfoServiceImpl.java
index d7675b368..a1a5e5085 100644
--- a/jsowell-pile/src/main/java/com/jsowell/pile/service/impl/PileMerchantInfoServiceImpl.java
+++ b/jsowell-pile/src/main/java/com/jsowell/pile/service/impl/PileMerchantInfoServiceImpl.java
@@ -5,7 +5,6 @@ import com.jsowell.common.constant.Constants;
 import com.jsowell.common.core.domain.entity.SysDept;
 import com.jsowell.common.core.domain.entity.SysUser;
 import com.jsowell.common.core.domain.vo.AuthorizedDeptVO;
-import com.jsowell.common.core.page.TableDataInfo;
 import com.jsowell.common.enums.ykc.ReturnCodeEnum;
 import com.jsowell.common.exception.BusinessException;
 import com.jsowell.common.util.DateUtils;
@@ -362,6 +361,9 @@ public class PileMerchantInfoServiceImpl implements IPileMerchantInfoService {
 	 */
 	@Override
 	public String queryAppIdByMerchantId(String merchantId) {
+		if (StringUtils.isBlank(merchantId)) {
+			return null;
+		}
 		/*
 		 一般情况下新建的运营商appId都是有值的，某些早前建的运营商appId可能为空
 		 一级运营商就是自己的appId, 二级运营商使用一级运营商的appId