diff --git a/src/main/java/com/chinaunicom/mall/ebtp/login/common/Constants.java b/src/main/java/com/chinaunicom/mall/ebtp/login/common/Constants.java
index 4d40001..66914fa 100644
--- a/src/main/java/com/chinaunicom/mall/ebtp/login/common/Constants.java
+++ b/src/main/java/com/chinaunicom/mall/ebtp/login/common/Constants.java
@@ -15,6 +15,11 @@ public class Constants {
     public static final String ANNO_MODE_VO_B = "BizAnnoVoBtable";
     public static final String ANNO_MODE_VO_M = "BizAnnoVoMtable";
 
+    /**
+     * 组织结构书根节点
+     */
+    public static final String ROOT_NODE = "10000000";
+
     public static final String EBTP_TENANT_BY = "EBTP";
 
     public static final String DELETE_FLAG_NORMAL = "normal";
diff --git a/src/main/java/com/chinaunicom/zyhy/ebtp/supplier/base/controller/OrgController.java b/src/main/java/com/chinaunicom/zyhy/ebtp/supplier/base/controller/OrgController.java
index 646eb1a..051e425 100644
--- a/src/main/java/com/chinaunicom/zyhy/ebtp/supplier/base/controller/OrgController.java
+++ b/src/main/java/com/chinaunicom/zyhy/ebtp/supplier/base/controller/OrgController.java
@@ -1,10 +1,13 @@
 package com.chinaunicom.zyhy.ebtp.supplier.base.controller;
 
 import com.chinaunicom.mall.ebtp.common.base.entity.*;
+import com.chinaunicom.mall.ebtp.login.common.Constants;
 import com.chinaunicom.zyhy.ebtp.supplier.base.service.IOrgService;
 import com.chinaunicom.zyhy.ebtp.supplier.base.service.IUserService;
 import io.swagger.annotations.ApiOperation;
 import io.swagger.annotations.ApiParam;
+import org.apache.commons.lang3.StringUtils;
+import org.apache.http.util.EntityUtils;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.cloud.openfeign.SpringQueryMap;
 import org.springframework.web.bind.annotation.*;
@@ -34,6 +37,10 @@ public class OrgController {
     @ApiOperation("查询机构列表")
     @GetMapping("/list")
     public BaseResponse<List<SysOrg>> getOrglist(@ApiParam(value = "查询对象数据", required = false) @SpringQueryMap SysOrg param){
+        // 如果上级机构ID和机构ID都为空，则以根节点为起点查下级
+        if(StringUtils.isEmpty(param.getOrgId()) && StringUtils.isEmpty(param.getUpOrgId())) {
+            param.setUpOrgId(Constants.ROOT_NODE);
+        }
         return orgService.getOrglist(param);
     }