diff --git a/src/components/chain/BlockChain.js b/src/components/chain/BlockChain.js
index 646778a..8f79608 100644
--- a/src/components/chain/BlockChain.js
+++ b/src/components/chain/BlockChain.js
@@ -4,10 +4,12 @@ import { OkxWallet } from '@/components/chain/wallet/OkxWallet';
 import {walletStore} from "@/store/wallet";
 import WalletSelectModel from "@/components/chain/WalletSelectModel.vue";
 import {createModal} from "@/utils/model.util";
+import {isTokenExpired, genRefreshToken, cfgChainId, switchEthereumChain} from "@/components/chain/utils"
 import {ImtblMarket} from "@/components/chain/Market";
 import { ALL_PROVIDERS } from "@/configs/configchain";
 import {Locker} from "@/components/chain/contract/Locker";
 
+
 export const allProviders = {
   1: MetaMaskWallet,
   2: OkxWallet,
@@ -43,16 +45,26 @@ export class BlockChain {
     new PassportWallet();
   }
 
-  async updateInfo({provider, accounts, token}) {
-    this.provider = provider
-    if (!token && !this.store.token) {
-      token = await this.wallet.getAccessToken();
-    } else if (!token && this.store.token){
-      token = this.store.token;
+  async updateInfo({provider, accounts}) {
+    this.web3Provider = provider
+    if (!this.store.token) {
+      const {token, refreshToken}= await this.wallet.getAccessToken();
+      this.store.token = token
+      this.store.refreshToken = refreshToken
+    } else {
+      if (isTokenExpired(3600, this.store.token)) {
+        if (this.store.refreshToken && !isTokenExpired(300, this.store.refreshToken)) {
+          const {token, refreshToken} = await genRefreshToken(this.store.refreshToken);
+          this.store.token = token;
+          this.store.refreshToken = refreshToken;
+        } else {
+          const {token, refreshToken}= await this.wallet.getAccessToken();
+          this.store.token = token
+          this.store.refreshToken = refreshToken
+        }
+      }
     }
     this.store.address = accounts[0];
-    this.token = token
-    this.store.token = token;
     this.store.$persist();
     this.market.updateProvider(provider);
     return provider;
@@ -60,8 +72,8 @@ export class BlockChain {
 
   async restoreWallet(walletType) {
     this.wallet = new allProviders[walletType]();
-    let { provider, accounts, token } = await this.wallet.web3Provider();
-    await this.updateInfo({provider, accounts, token})
+    const { provider, accounts } = await this.wallet.web3Provider();
+    await this.updateInfo({provider, accounts })
     return provider;
   }
 
@@ -71,8 +83,8 @@ export class BlockChain {
       const walletType = ALL_PROVIDERS[0].id
       this.wallet = new allProviders[walletType]();
       this.store.walletType = walletType;
-      const { provider, accounts, token } = await this.wallet.web3Provider();
-      await this.updateInfo({ provider, accounts, token })
+      const { provider, accounts } = await this.wallet.web3Provider();
+      await this.updateInfo({ provider, accounts })
       return provider;
     }
     const rewardModal = createModal(WalletSelectModel, {});
@@ -88,10 +100,30 @@ export class BlockChain {
     }
   }
 
+  get token() {
+    const suffix = (this.store.walletType == 2 || this.store.walletType == 1) ? '.cf' : ''
+    return this.store.token+suffix
+  }
+
   async logout() {
-    this.token = '';
     this.store.reset();
     this.store.$persist();
     await this.wallet.logout();
   }
+
+  async getChainId() {
+    return this.wallet.getChainId();
+  }
+  /**
+   * 检查并切换到目标链, 各上链前须调用该方法
+   */
+  async checkAndChangeChain() {
+    let chainId = await this.getChainId();
+    if (chainId !== cfgChainId) {
+      console.log(`current chain: ${chainId}, want: ${cfgChainId}`)
+      chainId = await switchEthereumChain(this.web3Provider.provider, cfgChainId);
+    }
+  }
+
+  
 }
diff --git a/src/components/chain/Market.js b/src/components/chain/Market.js
index 65c6c3c..03b79f9 100644
--- a/src/components/chain/Market.js
+++ b/src/components/chain/Market.js
@@ -6,8 +6,9 @@ const NATIVE = 'NATIVE'
 const ERC20 = 'ERC20'
 
 export class ImtblMarket {
-  constructor() {
+  constructor(_chainInstance) {
     this.client = new orderbook.Orderbook({ baseConfig });
+    this.bc = _chainInstance
   }
 
   updateProvider(provider) {
@@ -21,6 +22,7 @@ export class ImtblMarket {
    * @returns 
    */
   async listListings(contractAddress){
+    await this.bc.checkAndChangeChain();
     const listOfListings = await this.client.listListings({
       sellItemContractAddress: contractAddress,
       status: orderbook.OrderStatusName.ACTIVE,
@@ -114,6 +116,7 @@ export class ImtblMarket {
    * @param {string} currencyAmount 出售价格, 单位 wei
    */
   async beginSellERC721({contractAddress, tokenId, currencyAddress, currencyAmount, orderExpiry}) {
+    await this.bc.checkAndChangeChain();
     const { preparedListing, orderSignature } = 
       await this._prepareERC721Listing({contractAddress, tokenId, currencyAddress, currencyAmount, orderExpiry});
     const order = await this._createListing(preparedListing, orderSignature, currencyAmount);
@@ -125,6 +128,7 @@ export class ImtblMarket {
    * @param {*} listingId 
    */
   async beginBuy(listingId) {
+    await this.bc.checkAndChangeChain();
     const fulfiller = await this.signer.getAddress();
     // const fulfiller = marketAddress
     console.log(listingId,fulfiller)
@@ -149,6 +153,7 @@ export class ImtblMarket {
    * @param { string[] } listingIds: listingId列表
    */
   async batchBuy(listingIds) {
+    await this.bc.checkAndChangeChain();
     const fulfiller = await this.signer.getAddress();
     // console.log(listingIds, marketAddress,'---')
     // return
@@ -211,6 +216,7 @@ export class ImtblMarket {
    * @returns 
    */
   async cancelOrdersOnChain(listingIds) {
+    await this.bc.checkAndChangeChain();
     const offerer = await this.signer.getAddress();
     const { cancellationAction } = await this.client.cancelOrdersOnChain(
       listingIds,
diff --git a/src/components/chain/WalletSelectModel.vue b/src/components/chain/WalletSelectModel.vue
index b2983d1..483fef5 100644
--- a/src/components/chain/WalletSelectModel.vue
+++ b/src/components/chain/WalletSelectModel.vue
@@ -35,10 +35,6 @@ import { computed } from "vue";
 import { ALL_PROVIDERS } from "@/configs/configchain";
 import { allProviders } from "@/components/chain/BlockChain"
 
-import {walletStore} from "@/store/wallet";
-
-const localWalletStore = walletStore()
-
 const props = defineProps({
   visible: Boolean,
   close: Function,
diff --git a/src/components/chain/contract/Locker.js b/src/components/chain/contract/Locker.js
index e15ff38..962b78a 100644
--- a/src/components/chain/contract/Locker.js
+++ b/src/components/chain/contract/Locker.js
@@ -21,18 +21,19 @@ export class Locker {
   async lock(nft, tokenIds) {
     // call single method with abi and address
     console.log('lock nft', nft, tokenIds)
-    const nftContract = new ethers.Contract(nft, erc721Abi, this.bc.provider.getSigner())
+    await this.bc.checkAndChangeChain();
+    const nftContract = new ethers.Contract(nft, erc721Abi, this.bc.web3Provider.getSigner())
     for (let tokenId of tokenIds) {
       const addressApproval = await nftContract.getApproved(tokenId)
       if ((addressApproval || "").toLowerCase() != lockAddress.toLowerCase()) {
         const resApproval = await nftContract.approve(lockAddress, tokenId);
-        await this.bc.provider.waitForTransaction(resApproval.hash)
+        await this.bc.web3Provider.waitForTransaction(resApproval.hash)
         console.debug('approve', resApproval.hash)
       }
     }
-    const contract = new ethers.Contract(lockAddress, lockAbi, this.bc.provider.getSigner())
+    const contract = new ethers.Contract(lockAddress, lockAbi, this.bc.web3Provider.getSigner())
     const res = await contract.lock(nft, tokenIds)
-    await this.bc.provider.waitForTransaction(res.hash)
+    await this.bc.web3Provider.waitForTransaction(res.hash)
     return res.hash
   }
 }
\ No newline at end of file
diff --git a/src/components/chain/utils.js b/src/components/chain/utils.js
index 7146039..789fbbb 100644
--- a/src/components/chain/utils.js
+++ b/src/components/chain/utils.js
@@ -3,14 +3,27 @@ export const WALLET_API_HOST_RELEASE = 'https://wallet.cebggame.com';
 const apiBase = process.env.NODE_ENV === 'production' ? WALLET_API_HOST_RELEASE : WALLET_API_HOST_TEST;
 import { SiweMessage } from './common/SiweMessage';
 import { ethers } from 'ethers';
+import assert from 'assert'
+import { AllChains } from "@/configs/allchain";
+import { Deferred } from '@/utils/promise.util';
 
-const loginWithSignature = async(message, signature) => {
-  const url = `${apiBase}/wallet/login/general`;
-  const data = {
-    channel: 13,
-    code: signature,
-    message
+export const cfgChainId = parseInt(import.meta.env.VUE_APP_NET_ID);
+
+assert(cfgChainId, 'VUE_APP_NET_ID not configured');
+
+let chainCfg;
+for (const d of AllChains) {
+  if (d.id === cfgChainId) {
+    chainCfg = d;
+    break;
   }
+}
+assert(chainCfg, 'chain config not found');
+
+export const currentChainCfg = chainCfg;
+
+
+const request = async(url, data, method = 'POST') => {
   let headers = {
     'Content-Type': 'application/json',
     'api_version': 2,
@@ -18,12 +31,33 @@ const loginWithSignature = async(message, signature) => {
     'api_env': process.env.NODE_ENV === 'production' ? 'release' : 'dev'
   };
   return fetch(url, {
-    method: "POST",
+    method,
     body: JSON.stringify(data),
     headers
   }).then(res => res.json());
 }
 
+const loginWithSignature = async(message, signature) => {
+  const url = `${apiBase}/wallet/login/general`;
+  const data = {
+    channel: 13,
+    code: signature,
+    message,
+    nb: 1
+  }
+  return request(url, data);
+}
+
+export const genRefreshToken = async(refreshToken) => {
+  const url = `${apiBase}/wallet/refresh_token`;
+  const data = { refreshToken }
+  const res = await request(url, data);
+  if (res.errcode) {
+    throw new Error(res.errmsg);
+  }
+  return res.data;
+}
+
 const utf8ToHex = (str) => {
   return '0x' + Buffer.from(str).toString('hex');
 }
@@ -55,5 +89,100 @@ export const signLogin = async (provider, address) => {
   if (res.errcode) {
     throw new Error(res.errmsg);
   }
-  return res.data?.token;
+  return res.data;
+}
+
+
+export function parseTokenData(token) {
+  if (!token) {
+    return {};
+  }
+  let datas = token.split(".");
+  if (datas.length < 2) {
+    return {};
+  }
+  try {
+    return JSON.parse(window.atob(datas[1]));
+  } catch (err) {
+    return {};
+  }
+}
+
+/**
+ * check if token expired
+ * @param token jwt token string
+ * @param fixed fixed seconds
+ * @returns 
+ */
+export function isTokenExpired(fixed, token) {
+  if (!token) {
+    return true;
+  }
+  let data = parseTokenData(token);
+  if (!data.exp) {
+    return true;
+  }
+  let now = Date.now() / 1000 | 0;
+  return data.exp < now - fixed;
+}
+
+/**
+ * number to hex string
+ * @param {number} chainId
+ * @return {string}
+ */
+export function toHexChainId(chainId) {
+  return '0x' + chainId.toString(16)
+}
+
+export const switchEthereumChain = async (provider, targetChainId) => {
+  const hexChainId = toHexChainId(targetChainId)
+  const deferred = new Deferred();
+  const onChainChange = (chainId) => {
+    const chainIdNum = parseInt(chainId)
+    console.log('switchEthereumChain: ', chainIdNum)
+    provider.removeListener('chainChanged', onChainChange)
+    if (chainIdNum !== targetChainId) {
+      deferred.reject(new Error('switch chain failed'))
+      return
+    }
+    deferred.resolve(chainIdNum)
+  }
+  provider.on('chainChanged', onChainChange)
+  try {
+    await provider.request({
+      method: 'wallet_switchEthereumChain',
+      params: [{ chainId: hexChainId }]
+    })
+    console.log('success send switch chain request')
+  } catch (e) {
+    console.log('error switch chain: ', e)
+    if (e.code === 4902 || e.message.indexOf('Unrecognized chain ID') >= 0) {
+      try {
+        const data = chainCfg
+        await provider.request({
+          method: 'wallet_addEthereumChain',
+          params: [
+            {
+              chainId: hexChainId,
+              chainName: data.name,
+              nativeCurrency: {
+                name: data.symbol,
+                symbol: data.symbol,
+                decimals: data.decimals || 18
+              },
+              blockExplorerUrls: [data.explorerurl],
+              rpcUrls: [data.rpc]
+            }
+          ]
+        })
+        console.log('success send add chain request')
+      } catch (addError) {
+        console.error('error add chain: ', addError)
+        provider.removeListener('chainChanged', onChainChange)
+        deferred.reject(addError)
+      }
+    }
+  }
+  return deferred.promise
 }
\ No newline at end of file
diff --git a/src/components/chain/wallet/MetaMaskWallet.js b/src/components/chain/wallet/MetaMaskWallet.js
index e03cedd..b995759 100644
--- a/src/components/chain/wallet/MetaMaskWallet.js
+++ b/src/components/chain/wallet/MetaMaskWallet.js
@@ -21,8 +21,8 @@ export class MetaMaskWallet{
 
   async getAccessToken() {
     const accounts = await this.nativeProvider.request({ method: "eth_requestAccounts" });
-    const token = await signLogin(this.nativeProvider, accounts[0]);
-    return token
+    const { token, refreshToken } = await signLogin(this.nativeProvider, accounts[0]);
+    return { token, refreshToken }
   }
 
   async logout() {
@@ -35,4 +35,9 @@ export class MetaMaskWallet{
       ]
     });
   }
+
+  async getChainId() {
+    const chainId = await this.nativeProvider.request({ method: "eth_chainId" });
+    return parseInt(chainId);
+  }
 }
\ No newline at end of file
diff --git a/src/components/chain/wallet/OkxWallet.js b/src/components/chain/wallet/OkxWallet.js
index e390c8c..fdc18e0 100644
--- a/src/components/chain/wallet/OkxWallet.js
+++ b/src/components/chain/wallet/OkxWallet.js
@@ -21,11 +21,16 @@ export class OkxWallet{
 
   async getAccessToken() {
     const accounts = await this.nativeProvider.request({ method: "eth_requestAccounts" });
-    const token = await signLogin(this.nativeProvider, accounts[0]);
-    return token
+    const { token, refreshToken } = await signLogin(this.nativeProvider, accounts[0]);
+    return { token, refreshToken }
   }
 
   async logout() {
     await this.nativeProvider.request({ method: 'wallet_disconnect' });
   }
+
+  async getChainId() {
+    const chainId = await this.nativeProvider.request({ method: "eth_chainId" });
+    return parseInt(chainId);
+  }
 }
\ No newline at end of file
diff --git a/src/components/chain/wallet/PassportWallet.js b/src/components/chain/wallet/PassportWallet.js
index 29f3b4e..cd75308 100644
--- a/src/components/chain/wallet/PassportWallet.js
+++ b/src/components/chain/wallet/PassportWallet.js
@@ -1,5 +1,6 @@
 import { config, passport, orderbook, checkout } from '@imtbl/sdk';
 import { providers } from 'ethers';
+import { cfgChainId } from '@/components/chain/utils.js';
 
 const environment = process.env.NODE_ENV === 'production' ? config.Environment.PRODUCTION : config.Environment.SANDBOX; 
 const publishableKey = import.meta.env.VUE_APP_PASSPORT_PUBLISHABLE_KEY
@@ -69,12 +70,16 @@ export class PassportWallet {
   
 
   async getAccessToken() {
-    return await this.passportInstance.getAccessToken();
+    const token = await this.passportInstance.getAccessToken();
+    return { token }
   }
 
   async logout() {
     await this.passportInstance.logout();
     await this.passportInstance.logoutSilentCallback(logoutRedirectUri);
   }
-  
+
+  async getChainId() {
+    return Promise.resolve(cfgChainId)
+  }
 }
diff --git a/src/configs/allchain.ts b/src/configs/allchain.ts
index a543128..08cad38 100644
--- a/src/configs/allchain.ts
+++ b/src/configs/allchain.ts
@@ -282,5 +282,21 @@ export const AllChains = [
     id: 1666700000,
     symbol: 'ONE',
     explorerurl: 'https://explorer.harmony.one'
+  },
+  {
+    name: 'Immutable zkEVM',
+    type: 'Mainnet',
+    rpc: 'https://rpc.immutable.com',
+    id: 13371,
+    symbol: 'IMX',
+    explorerurl: 'https://explorer.immutable.com'
+  },
+  {
+    name: 'Immutable zkEVM Testnet',
+    type: 'Testnet',
+    rpc: 'https://rpc.testnet.immutable.com',
+    id: 13473,
+    symbol: 'tIMX',
+    explorerurl: 'https://explorer.testnet.immutable.com'
   }
 ]
diff --git a/src/store/wallet.js b/src/store/wallet.js
index 9eec881..d7428db 100644
--- a/src/store/wallet.js
+++ b/src/store/wallet.js
@@ -8,6 +8,7 @@ export const walletStore = defineStore(
     const address = ref();
     const chainId = ref();
     const token = ref();
+    const refreshToken = ref();
 
     const showAddress = computed(() => {
       if (address.value.length > 10) {
@@ -21,12 +22,14 @@ export const walletStore = defineStore(
       address.value = '';
       chainId.value = '';
       token.value = '';
+      refreshToken.value = '';
     }
     return {
       walletType,
       address,
       chainId,
       token,
+      refreshToken,
       showAddress,
       reset,
     };