diff --git a/server/web3service/blockchain.js b/server/web3service/blockchain.js
index 2306ac5..5a85246 100644
--- a/server/web3service/blockchain.js
+++ b/server/web3service/blockchain.js
@@ -26,13 +26,14 @@ class BlockChain {
   async init() {
     this.web3Conf = metaFactory.getWeb3Conf(this.netId);
     this.contractsConf = metaFactory.getContractsConf(this.netId);
+    this.netDir = metaFactory.getNetDir(this.netId);
 
     this.web3 = new Web3(this.getRpcUrl());
     this.web3.eth.handleRevert = true;
     this.web3.eth.accounts.wallet.add(this.getPrivateKey());
     for (const data of this.contractsConf) {
       this[`${data.name}Instance`] = await this.initInstance
-      (this.getUserAddress(), data.address, data.json);
+      (this.getUserAddress(), data.address, this.netDir + data.json);
     }
     event.emitEvent(C.BC_INITIALIZED_EVENT);
   }
diff --git a/server/web3service/metadata/factory.js b/server/web3service/metadata/factory.js
index 34c4e4b..d95aef6 100644
--- a/server/web3service/metadata/factory.js
+++ b/server/web3service/metadata/factory.js
@@ -5,6 +5,7 @@ const log = require('j7/log');
 const metaClassList = [];
 const metaClasses = {};
 const web3ConfHash = {};
+let configDir = './config/';
 
 function registerMetaClass(fileName, primKey, wrapClass) {
   const metaClass = {
@@ -68,7 +69,7 @@ function load() {
 }
 
 function init() {
-  let configDir = './config/';
+  configDir = './config/';
   if (utils.isOnlineEnv()) {
     configDir = '../config/';
   } else if (utils.getArgv('env') == 'dev'){
@@ -150,6 +151,11 @@ function getWeb3Conf(netId) {
 
 }
 
+function getNetDir(netId) {
+  const netDir = configDir + 'nets/' + netId + '/';
+  return netDir;
+}
+
 exports.init = init;
 
 exports.getMetaByKey = getMetaByKey;