diff --git a/esua-epdc/epdc-module/epdc-custom/epdc-custom-server/src/main/java/com/elink/esua/epdc/modules/enterprise/dao/EnterpriseInfoDao.java b/esua-epdc/epdc-module/epdc-custom/epdc-custom-server/src/main/java/com/elink/esua/epdc/modules/enterprise/dao/EnterpriseInfoDao.java
index 0ff07cf72..5b8549ab8 100644
--- a/esua-epdc/epdc-module/epdc-custom/epdc-custom-server/src/main/java/com/elink/esua/epdc/modules/enterprise/dao/EnterpriseInfoDao.java
+++ b/esua-epdc/epdc-module/epdc-custom/epdc-custom-server/src/main/java/com/elink/esua/epdc/modules/enterprise/dao/EnterpriseInfoDao.java
@@ -73,4 +73,11 @@ public interface EnterpriseInfoDao extends BaseDao<EnterpriseInfoEntity> {
      * @since 2020/3/7 13:52
      */
     List<EnterpriseInfoDTO> selectListOfOrganizationInfo(String deptId);
+
+    /**
+     * 根据统一社会信用代码查询是否已存在该代码
+     * @param uniformSocialCreditCode
+     * @return
+     */
+    int getCountByCode(String uniformSocialCreditCode);
 }
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diff --git a/esua-epdc/epdc-module/epdc-custom/epdc-custom-server/src/main/java/com/elink/esua/epdc/modules/enterprise/service/impl/EnterpriseInfoServiceImpl.java b/esua-epdc/epdc-module/epdc-custom/epdc-custom-server/src/main/java/com/elink/esua/epdc/modules/enterprise/service/impl/EnterpriseInfoServiceImpl.java
index 902cdb176..e40129198 100644
--- a/esua-epdc/epdc-module/epdc-custom/epdc-custom-server/src/main/java/com/elink/esua/epdc/modules/enterprise/service/impl/EnterpriseInfoServiceImpl.java
+++ b/esua-epdc/epdc-module/epdc-custom/epdc-custom-server/src/main/java/com/elink/esua/epdc/modules/enterprise/service/impl/EnterpriseInfoServiceImpl.java
@@ -139,6 +139,14 @@ public class EnterpriseInfoServiceImpl extends BaseServiceImpl<EnterpriseInfoDao
     @Override
     @Transactional(rollbackFor = Exception.class)
     public Result completeRequisiteInfo(CompleteRequisiteInfoDTO fromDto) {
+        // 校验统一社会信用代码是否已存在数据库
+        String uniformSocialCreditCode = fromDto.getUniformSocialCreditCode();
+        if(StringUtils.isNotBlank(uniformSocialCreditCode)){
+            int count = baseDao.getCountByCode(uniformSocialCreditCode);
+            if(count > 0){
+                throw new RenException("您输入的统一社会信用代码已存在！");
+            }
+        }
         //保存到企业数据库
         EnterpriseInfoEntity enterpriseInfo = ConvertUtils.sourceToTarget(fromDto, EnterpriseInfoEntity.class);
         Result<ParentAndAllDeptDTO> parentResult = adminFeignClient.getParentAndAllDept(String.valueOf(fromDto.getDeptId()));
diff --git a/esua-epdc/epdc-module/epdc-custom/epdc-custom-server/src/main/resources/mapper/enterprise/EnterpriseInfoDao.xml b/esua-epdc/epdc-module/epdc-custom/epdc-custom-server/src/main/resources/mapper/enterprise/EnterpriseInfoDao.xml
index 63e2c428b..671da21c5 100644
--- a/esua-epdc/epdc-module/epdc-custom/epdc-custom-server/src/main/resources/mapper/enterprise/EnterpriseInfoDao.xml
+++ b/esua-epdc/epdc-module/epdc-custom/epdc-custom-server/src/main/resources/mapper/enterprise/EnterpriseInfoDao.xml
@@ -86,4 +86,7 @@
         WHERE
             FIND_IN_SET( #{deptId}, ALL_DEPT_IDS )
     </select>
+    <select id="getCountByCode">
+        select count(*) count from epdc_enterprise_info where UNIFORM_SOCIAL_CREDIT_CODE = #{uniformSocialCreditCode} and DEL_FLAG = '0'
+    </select>
 </mapper>
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