diff --git a/src/JCWallet.d.ts b/src/JCWallet.d.ts
index 29f2c78..94bbdf5 100644
--- a/src/JCWallet.d.ts
+++ b/src/JCWallet.d.ts
@@ -31,6 +31,13 @@ declare namespace jsb {
   export function hashSvrPass(pass: string): string;
   export function walletEncrypt(str: string): string;
   export function walletDecrypt(str: string): string;
+  export function walletSecKey(
+    id: string,
+    openid: string,
+    key_master: string,
+    salt: string,
+    pass: string
+  ): string;
   export function prepareWallet(
     id: string,
     openid: string,
diff --git a/src/index.ts b/src/index.ts
index 978fd01..7aa2a8a 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -25,6 +25,7 @@ import { singleton } from "./decorator/singleton.decorator";
 import { saveData } from "./manage/DataManage";
 import { parseUrl } from "./manage/SchemeManage";
 import {
+  exportSecKey,
   loadInternalWallet,
   loginByEmail,
   verifyPassword,
@@ -119,6 +120,10 @@ export default class JCWallet {
     return verifyPassword(pass);
   }
 
+  public exportPrivateKey(pass: string) {
+    return exportSecKey(pass);
+  }
+
   public emailLogin(email: string, password: string) {
     return loginByEmail(email, password);
   }
diff --git a/src/manage/WalletManage.ts b/src/manage/WalletManage.ts
index 0d20119..2976ad8 100644
--- a/src/manage/WalletManage.ts
+++ b/src/manage/WalletManage.ts
@@ -135,6 +135,26 @@ export async function verifyPassword(pass: string) {
   return new WalletEnv().address === address;
 }
 
+export function exportSecKey(pass: string) {
+  let walletEnv = new WalletEnv();
+  if (!walletEnv.address || !walletEnv.key) {
+    throw new ZError(10, "wallet not found");
+  }
+  let { id, openid } = walletEnv.tokenData;
+  let resultStr = jsb.walletSecKey(
+    id,
+    openid,
+    walletEnv.key,
+    walletEnv.salt,
+    pass
+  );
+  let result = JSON.parse(resultStr);
+  if (result.address !== walletEnv.address) {
+    throw new ZError(11, "address not match, perhaps wrong password");
+  }
+  return result.key;
+}
+
 export function walletSign(str: string) {
   let result = jsb.walletSign(str);
   return result;