diff --git a/src/components/chain/BlockChain.js b/src/components/chain/BlockChain.js
index d87c6dc..db1942b 100644
--- a/src/components/chain/BlockChain.js
+++ b/src/components/chain/BlockChain.js
@@ -148,11 +148,12 @@ export class BlockChain {
   /**
    * 检查并切换到目标链, 各上链前须调用该方法
    */
-  async checkAndChangeChain() {
+  async checkAndChangeChain(targetChainId) {
+    targetChainId = targetChainId || cfgChainId;
     let chainId = await this.getChainId();
-    if (chainId !== cfgChainId) {
-      console.log(`current chain: ${chainId}, want: ${cfgChainId}`)
-      chainId = await switchEthereumChain(this.web3Provider.provider, cfgChainId);
+    if (chainId !== targetChainId) {
+      console.log(`current chain: ${chainId}, want: ${targetChainId}`)
+      chainId = await switchEthereumChain(this.web3Provider.provider, targetChainId);
     }
   }
 
diff --git a/src/components/chain/contract/Locker.js b/src/components/chain/contract/Locker.js
index f334a6e..8f7061f 100644
--- a/src/components/chain/contract/Locker.js
+++ b/src/components/chain/contract/Locker.js
@@ -1,8 +1,10 @@
 
 import { ethers } from 'ethers'
+import { apiUnlockOrMint } from '@/utils/marketplace'
 
 const lockAbi = [
-  'function lock(address nft, address to, uint256[] tokenIds) external'
+  'function lock(address nft, address to, uint256[] tokenIds) external',
+  'function unlockOrMint(address nft, tuple[] nftList, uint256 signTime, uint256 saltNonce, bytes signature) external'
 ]
 
 const erc721Abi = [
@@ -40,4 +42,31 @@ export class Locker {
     await this.bc.web3Provider.waitForTransaction(res.hash)
     return res.hash
   }
-}
\ No newline at end of file
+  // 游戏内资产上链, 用于解锁或铸造
+  // 创世英雄, 普通英雄, 金砖
+  async unlockOrMintGameNft(nft, tokenIds) {
+    console.log('unlock nft', nft, tokenIds)
+    await this.bc.checkPassportLogin();
+    await this.bc.checkAndChangeChain();
+    const preDatas = {
+      net_id: import.meta.env.VUE_APP_NET_ID,
+      contract_address: nft,
+      tokens: tokenIds.map(tokenId => {return { tokenId }}),
+    }
+    const { errcode, errmsg, trans_req } = await apiUnlockOrMint(preDatas)
+    if (errcode) {
+      throw new Error(errmsg)
+    }
+    const { to, data } = trans_req
+    const web3Provider = this.bc.passportProvider || this.bc.web3Provider
+    const txHash = await web3Provider.request({
+      method: 'eth_sendTransaction',
+      params: [{
+        to,
+        data
+      }]
+    })
+    console.log(txHash)
+    return txHash
+  }
+}
diff --git a/src/configs/allchain.ts b/src/configs/allchain.ts
index 08cad38..5303e0c 100644
--- a/src/configs/allchain.ts
+++ b/src/configs/allchain.ts
@@ -298,5 +298,13 @@ export const AllChains = [
     id: 13473,
     symbol: 'tIMX',
     explorerurl: 'https://explorer.testnet.immutable.com'
+  },
+  {
+    name: 'Sepolia Testnet',
+    type: 'Testnet',
+    rpc: 'https://rpc.sepolia.org',
+    id: 11155111,
+    symbol: 'ETH',
+    explorerurl: 'https://sepolia.etherscan.io'
   }
 ]
diff --git a/src/utils/marketplace.js b/src/utils/marketplace.js
index 4ef3c3f..edc9251 100644
--- a/src/utils/marketplace.js
+++ b/src/utils/marketplace.js
@@ -104,4 +104,9 @@ export const apiClearCartList = async () => {
 export const nftDetail = async(address, tokenId) => {
   const url = `${API_BASE}/api/market/product/goods/${net_id}/${address}/${tokenId}`
   return httpGet(url, {})
-}
\ No newline at end of file
+}
+
+export const apiUnlockOrMint = async (data) => {
+  const url = `${API_BASE}/api/nft/stacking/unlock`
+  return httpPost(url, data)
+}