diff --git a/server/web3sign/controllers/factory.js b/server/web3sign/controllers/factory.js
index 5d88699..c804d8f 100644
--- a/server/web3sign/controllers/factory.js
+++ b/server/web3sign/controllers/factory.js
@@ -10,6 +10,7 @@ async function init() {
   add('nftunlock');
   add('minthero');
   add('erc');
+  add('recharge');
 }
 
 exports.init = init;
diff --git a/server/web3sign/controllers/recharge.js b/server/web3sign/controllers/recharge.js
new file mode 100644
index 0000000..ab16dc9
--- /dev/null
+++ b/server/web3sign/controllers/recharge.js
@@ -0,0 +1,75 @@
+const app = require('j7/app');
+const utils = require('j7/utils');
+const bcutils = require('j7/bcutils');
+const bcconst = require('common/bcconst');
+const metaFactory = require('../metadata/factory');
+const serviceFactory = require('../services/factory');
+
+async function recharge(session) {
+  try {
+    const accountAddress = bcutils.toNormalAddress(session.request('account_address'));
+    const netId = session.request('net_id');
+    const spender = bcutils.toNormalAddress(session.request('spender'));
+    const value = session.request('value');
+    const currencyName = session.request('currency_name');
+    const orderId = session.request('orderId');
+    const bc = serviceFactory.create('BlockChain');
+    {
+      const ret = await bc.init(netId);
+      if (!ret) {
+        session.rspErr(500, 'net_id error');
+        return;
+      }
+    }
+    {
+      if (!bc.isValidAddress(accountAddress)) {
+        session.rspErr(500, 'account_address error');
+        return;
+      }
+    }
+    {
+      if (!bc.isValidAddress(spender)) {
+        session.rspErr(500, 'spender error');
+        return;
+      }
+    }
+    const contractMeta = bc.getContractByName(currencyName);
+    if (!contractMeta) {
+      session.rspErr(500, 'currency meta not found');
+      return;
+    }
+    console.log(contractMeta);
+    if (contractMeta['type'] != 'erc20') {
+      session.rspErr(500, 'currency meta type error');
+      return;
+    }
+
+    const calls = [];
+    {
+      const instance = bc.getInstanceByName(currencyName);
+      if (!instance) {
+        session.rspErr(500, 'currency error');
+        return;
+      }
+      let data = instance.methods.approve
+      (
+        spender,
+        value).encodeABI();
+
+    }
+
+    session.rspData({
+      'calls' : calls,
+    });
+  } catch (e) {
+    session.rspErr(1, 1);
+    utils.safeDumpErrStack(e);
+    console.log(e);
+  }
+}
+
+function init() {
+  app.registerHandler('BcService', 'recharge', recharge);
+}
+
+exports.init = init;