diff --git a/app/mix/dao/mongo.go b/app/mix/dao/mongo.go
index ba8057a8..62572a0f 100644
--- a/app/mix/dao/mongo.go
+++ b/app/mix/dao/mongo.go
@@ -1177,6 +1177,26 @@ func (m *Mongo) GetAccountListByUserId(ctx *gin.Context, req *accountproto.OpLis
 	return account, err
 }
 
+func (m *Mongo) GetAccountListByPhoneHash(ctx *gin.Context, phonehash string) ([]*dbstruct.Account, error) {
+	col := m.getColAccount()
+	list := make([]*dbstruct.Account, 0)
+
+	query := qmgo.M{
+		"phone_hash": phonehash,
+		"del_flag":   0,
+	}
+
+	err := col.Find(ctx, query).All(&list)
+	if err == qmgo.ErrNoSuchDocuments {
+		err = nil
+		return nil, err
+	}
+	if err != nil {
+		return nil, err
+	}
+	return list, err
+}
+
 func (m *Mongo) GetAccountListFuzzilyByName(ctx *gin.Context, req *accountproto.OpListFuzzilyByNameReq) ([]*dbstruct.Account, error) {
 	list := make([]*dbstruct.Account, 0)
 	col := m.getColAccount()
diff --git a/app/mix/service/logic/account.go b/app/mix/service/logic/account.go
index 57227006..8fa6ec81 100644
--- a/app/mix/service/logic/account.go
+++ b/app/mix/service/logic/account.go
@@ -273,3 +273,12 @@ func (p *Account) OpCreateHis(ctx *gin.Context, accounts []*dbstruct.Account) er
 	}
 	return nil
 }
+
+func (p *Account) OpListByPhoneHash(ctx *gin.Context, phonehash string) ([]*dbstruct.Account, error) {
+	list, err := p.store.GetAccountListByPhoneHash(ctx, phonehash)
+	if err != nil {
+		logger.Error("GetAccountListByMid fail, err: %v", err)
+		return nil, err
+	}
+	return list, nil
+}
diff --git a/app/mix/service/utilservice.go b/app/mix/service/utilservice.go
index 5a17efe3..ca66120f 100644
--- a/app/mix/service/utilservice.go
+++ b/app/mix/service/utilservice.go
@@ -46,6 +46,19 @@ func (s *Service) utilRegisterUser(ctx *gin.Context, req *loginproto.MobilePhone
 
 	ec = errcode.ErrCodeLoginSrvOk
 
+	//查询是否已经创建账号
+	list, err := _DefaultAccount.OpListByPhoneHash(ctx, req.PhoneHash)
+	if err != nil {
+		logger.Error("_DefaultAccount OpListByPhoneHashfail, err: %v", err)
+		ec = errcode.ErrCodeAccountSrvFail
+		return
+	}
+	if len(list) > 0 {
+		logger.Error("Account OpCreate failed, err: %v", err)
+		ec = errcode.ErrCodeAccountSrvFail
+		return
+	}
+
 	//判断邀请人是否是主播
 	if inviter != nil {
 		account, err := _DefaultAccount.OpListByUserId(ctx, &accountproto.OpListByUserIdReq{