diff --git a/flossom-common/flossom-common-core/src/main/java/com/flossom/common/core/mapper/WxUserMemberMapper.java b/flossom-common/flossom-common-core/src/main/java/com/flossom/common/core/mapper/WxUserMemberMapper.java
index e9df72b..328a645 100644
--- a/flossom-common/flossom-common-core/src/main/java/com/flossom/common/core/mapper/WxUserMemberMapper.java
+++ b/flossom-common/flossom-common-core/src/main/java/com/flossom/common/core/mapper/WxUserMemberMapper.java
@@ -81,5 +81,5 @@ public interface WxUserMemberMapper {
     List<Integer> selectWxUserMemberIdList();
 
 
-
+    List<WxUserMember> selectWxUserMemberByMobile(@Param("mobile") String mobile);
 }
diff --git a/flossom-common/flossom-common-core/src/main/resources/mapper/WxUserMemberMapper.xml b/flossom-common/flossom-common-core/src/main/resources/mapper/WxUserMemberMapper.xml
index 8dc63b0..0b6db33 100644
--- a/flossom-common/flossom-common-core/src/main/resources/mapper/WxUserMemberMapper.xml
+++ b/flossom-common/flossom-common-core/src/main/resources/mapper/WxUserMemberMapper.xml
@@ -291,5 +291,11 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
         SELECT id FROM `wx_user_member`
     </select>
 
+    <select id="selectWxUserMemberByMobile" resultMap="WxUserMemberResult">
+        <include refid="selectWxUserMemberVo"/>
+        WHERE
+            mobile = #{mobile}
+    </select>
+
 
 </mapper>
\ No newline at end of file
diff --git a/flossom-modules/flossom-mini-program/src/main/java/com/flossom/miniProgram/service/impl/WxUserMemberServiceImpl.java b/flossom-modules/flossom-mini-program/src/main/java/com/flossom/miniProgram/service/impl/WxUserMemberServiceImpl.java
index 0cf04e6..2d9223a 100644
--- a/flossom-modules/flossom-mini-program/src/main/java/com/flossom/miniProgram/service/impl/WxUserMemberServiceImpl.java
+++ b/flossom-modules/flossom-mini-program/src/main/java/com/flossom/miniProgram/service/impl/WxUserMemberServiceImpl.java
@@ -24,6 +24,7 @@ import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Propagation;
 import org.springframework.transaction.annotation.Transactional;
 
+import java.util.List;
 import java.util.Map;
 import java.util.concurrent.TimeUnit;
 
@@ -110,6 +111,12 @@ public class WxUserMemberServiceImpl implements IWxUserMemberService {
             logger.error("获取用户手机号码失败: {}", wxCode2PhoneRet.getErrmsg());
             throw new ServiceException("获取用户手机号码失败");
         }
+
+        // 查询号码是否存在
+        List<WxUserMember> wxUserMembers = wxUserMemberMapper.selectWxUserMemberByMobile(wxCode2PhoneRet.getPhoneInfo().getPhoneNumber());
+        if (wxUserMembers.size() > 0) {
+            throw new ServiceException("手机号码已注册！");
+        }
         wxUserMemberMapper.upgradeMember(wxCode2PhoneRet.getPhoneInfo().getPhoneNumber(), SecurityUtils.getLoginUser().getWxUserMember().getId().intValue());
         return wxCode2PhoneRet.getPhoneInfo().getPhoneNumber();
     }