diff --git a/src/modules/sign/sign.controller.js b/src/modules/sign/sign.controller.js
index f063212..822e3ff 100644
--- a/src/modules/sign/sign.controller.js
+++ b/src/modules/sign/sign.controller.js
@@ -68,28 +68,31 @@ module.exports = {
     signUpReqInviter: inject(function(SysConfig) {
         const { JWT_SECRET, PWD_HASH_SALT } = SysConfig;
         return async (req, res) => {
-            let { phone, code, inviter, password } = req.body;
-            if (!phone || !code || !password || !inviter) return res.json({
+            let { phone, code, inviteCode, password } = req.body;
+            if (!phone || !code || !password || !inviteCode) return res.json({
                 code: 1,
                 msg: 'Missing required parameters'
             });
-            const validInviter = await User.findById(inviter).catch(err => null);
+            const invitePhone = '+86-' + parseInt(inviteCode);
+            const validInviter = await User.findOne({ phone: invitePhone }).catch(null);
             if (!validInviter) return res.json({
                 code: 4,
                 msg: '邀请人不存在'
             });
             const isCodeValid = await Code.verifyCode({ id: phone, code, type: CODE_TYPE['signUp'] });
             password = Crypto.hash(password, { salt: PWD_HASH_SALT });
+            const newInviteCode = typeof phone === 'string' && parseInt(phone.split('-')[1]).toString(36);
             if (isCodeValid) {
                 await createNewUser({
                     phone,
-                    inviter,
-                    password
+                    inviter: validInviter.id,
+                    password,
+                    inviteCode: newInviteCode
                 }).then(user => {
-                    User.findByIdAndUpdate(inviter, { $push: { group: user.id } }).catch(err => {
-                        mylog.error('将被邀请人加入到邀请人队列失败', err && err.errmsg);
+                    User.findByIdAndUpdate(validInviter.id, { $push: { group: user.id } }).catch(err => {
+                        mylog.error('将被邀请人加入到邀请人队列失败 uid', user.id, err && err.errmsg);
                     });
-                    new Fund({userId: user.id }).save().catch(err => mylog.error('用户资金文档创建失败', err && err.errmsg));
+                    new Fund({userId: user.id }).save().catch(err => mylog.error('用户资金文档创建失败 uid', user.id, err && err.errmsg));
                     const token = createToken({
                         userId: user.id
                     }, JWT_SECRET, {});
diff --git a/src/modules/user/user.controller.js b/src/modules/user/user.controller.js
index d2aade0..d771e30 100644
--- a/src/modules/user/user.controller.js
+++ b/src/modules/user/user.controller.js
@@ -5,8 +5,8 @@ const changePwd = require('../sign/sign.controller').changePasswd;
 module.exports = {
     changePwd,
     async createNewUser (data) {
-        let { phone, inviter = '', password } = data;
-        return await (new User({ phone, inviter, password })).save().then(user => user).catch(err => {
+        const { phone, inviter = '', password, inviteCode } = data;
+        return await (new User({ phone, inviter, password, inviteCode })).save().then(user => user).catch(err => {
             mylog.error('创建新用户失败', err);
             throw new Error('创建新用户失败', err.errmsg);
         });
diff --git a/src/modules/user/user.model.js b/src/modules/user/user.model.js
index ff1c5fe..e0e016e 100644
--- a/src/modules/user/user.model.js
+++ b/src/modules/user/user.model.js
@@ -19,6 +19,9 @@ const UserSchema = new mongoose.Schema({
     inviter: {
         type: String,
     },
+    inviteCode: {
+        type: String
+    },
     asset: {
         type: {}
     },