diff --git a/src/components/chain/BlockChain.js b/src/components/chain/BlockChain.js
index 4fbd12f..fa7ddbf 100644
--- a/src/components/chain/BlockChain.js
+++ b/src/components/chain/BlockChain.js
@@ -229,6 +229,7 @@ export class BlockChain {
    */
   async checkAndChangeChain(targetChainId, provider) {
     targetChainId = targetChainId || cfgChainId;
+    // passport只支持imtbl链, 不需要切换
     if (!provider && this.store.walletType == 3) {
       return
     }
@@ -238,6 +239,16 @@ export class BlockChain {
       console.log(`current chain: ${chainId}, want: ${targetChainId}`)
       chainId = await switchEthereumChain(provider.provider, targetChainId);
     }
+    
+    if (this.store.walletType == 3) {
+      const { provider, accounts } = await this.eoaWallet.web3Provider();
+      this.eoaProvider = provider;
+    } else {
+      const { provider, accounts } = await this.wallet.web3Provider();
+      this.web3Provider = provider;
+      this.eoaProvider = provider;
+    }
+    
   }
 
   async checkPassportLogin() {