diff --git a/contracts/SmartRoute/helper/DODOSwapCalcHelper.sol b/contracts/SmartRoute/helper/DODOSwapCalcHelper.sol
new file mode 100644
index 0000000..bc9de75
--- /dev/null
+++ b/contracts/SmartRoute/helper/DODOSwapCalcHelper.sol
@@ -0,0 +1,40 @@
+/*
+
+    Copyright 2020 DODO ZOO.
+    SPDX-License-Identifier: Apache-2.0
+
+*/
+
+pragma solidity 0.6.9;
+
+import {IDODOV1} from "../intf/IDODOV1.sol";
+import {IDODOSellHelper} from "./DODOSellHelper.sol";
+
+contract DODOSwapCalcHelper {
+    address public immutable _DODO_SELL_HELPER_;
+
+    constructor(address dodoSellHelper) public {
+        _DODO_SELL_HELPER_ = dodoSellHelper;
+    }
+
+    function calcReturnAmountV1(
+        uint256 fromTokenAmount,
+        address[] memory dodoPairs,
+        uint8[] memory directions
+    ) external view returns (uint256 returnAmount,uint256[] memory midPrices) {
+        returnAmount = fromTokenAmount;
+        midPrices = new uint256[](dodoPairs.length);
+        for (uint256 i = 0; i < dodoPairs.length; i++) {
+            address curDodoPair = dodoPairs[i];
+            if (directions[i] == 0) {
+                returnAmount = IDODOV1(curDodoPair).querySellBaseToken(returnAmount);
+            } else {
+                returnAmount = IDODOSellHelper(_DODO_SELL_HELPER_).querySellQuoteToken(
+                    curDodoPair,
+                    returnAmount
+                );
+            }
+            midPrices[i] = IDODOV1(curDodoPair).getMidPrice();
+        }        
+    }
+}
diff --git a/contracts/SmartRoute/intf/IDODOV1.sol b/contracts/SmartRoute/intf/IDODOV1.sol
index 0f748fb..953f5ca 100644
--- a/contracts/SmartRoute/intf/IDODOV1.sol
+++ b/contracts/SmartRoute/intf/IDODOV1.sol
@@ -77,4 +77,6 @@ interface IDODOV1 {
     function getExpectedTarget() external view returns (uint256 baseTarget, uint256 quoteTarget);
 
     function getOraclePrice() external view returns (uint256);
+
+    function getMidPrice() external view returns (uint256 midPrice); 
 }
diff --git a/deploy-detail-v1.5.txt b/deploy-detail-v1.5.txt
index 12f781a..beef31c 100644
--- a/deploy-detail-v1.5.txt
+++ b/deploy-detail-v1.5.txt
@@ -1,3 +1,12 @@
 ====================================================
 network type: kovan
-Deploy time: 2020/12/7 下午3:15:48
+Deploy time: 2020/12/9 下午10:11:50
+DODOSwapCalcHelper Address:  0x096b90D15AB8319f6829C96E7062556b74806988
+====================================================
+network type: bsclive
+Deploy time: 2020/12/9 下午10:14:15
+DODOSwapCalcHelper Address:  0xED3Ac3335a24331F1704df8CB456C88dCA282782
+====================================================
+network type: live
+Deploy time: 2020/12/9 下午10:16:19
+DODOSwapCalcHelper Address:  0x22C1a736DBE8200E6DF2f3D8F97c0D5749c1E257
diff --git a/migrations/2_deploy_v1.5.js b/migrations/2_deploy_v1.5.js
index 92c542e..ea149b1 100644
--- a/migrations/2_deploy_v1.5.js
+++ b/migrations/2_deploy_v1.5.js
@@ -5,17 +5,20 @@ let logger = new console.Console(file, file);
 const DODOApprove = artifacts.require("DODOApprove");
 const DODOProxyV1 = artifacts.require("DODOV1Proxy01");
 const DODOSellHelper = artifacts.require("DODOSellHelper");
+const DODOSwapCalcHelper = artifacts.require("DODOSwapCalcHelper");
 
-const DEPLOY_ROUTE = false;
+const DEPLOY_ROUTE = true;
 
 module.exports = async (deployer, network, accounts) => {
   let DODOSellHelperAddress = "";
   let WETHAddress = "";
   let DODOApproveAddress = "";
   let chiAddress = "";
+  let DODOSwapCalcHelperAddress = "";
   if (network == "kovan") {
     DODOSellHelperAddress = "0xbdEae617F2616b45DCB69B287D52940a76035Fe3";
     WETHAddress = "0x5eca15b12d959dfcf9c71c59f8b467eb8c6efd0b";
+    DODOSwapCalcHelperAddress = "";
     // DODOApproveAddress = "0xbcf0fC05860b14cB3D62D1d4C7f531Ad2F28E0fE";
     DODOApproveAddress = "0x0C4a80B2e234448E5f6fD86e7eFA733d985004c8";
     chiAddress = "0x0000000000004946c0e9f43f4dee607b0ef1fa1c";
@@ -24,19 +27,22 @@ module.exports = async (deployer, network, accounts) => {
     WETHAddress = "0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2";
     DODOApproveAddress = "0x4eC851895d85bfa6835241b3157ae10FfFD3BebC";
     chiAddress = "0x0000000000004946c0e9F43F4Dee607b0eF1fA1c";
+    DODOSwapCalcHelperAddress = "";
   } else if (network == "bsclive") {
     DODOSellHelperAddress = "0x0F859706AeE7FcF61D5A8939E8CB9dBB6c1EDA33";
     WETHAddress = "0xbb4CdB9CBd36B01bD1cBaEBF2De08d9173bc095c";
     DODOApproveAddress = "0x19DA73be23Cea6bFA804Ec020041b8F3971BC522";
     chiAddress = "0x0000000000000000000000000000000000000000";
+    DODOSwapCalcHelperAddress = "";
   } else return;
 
-  logger.log("====================================================");
-  logger.log("network type: " + network);
-  logger.log("Deploy time: " + new Date().toLocaleString());
-
   if (DEPLOY_ROUTE) {
-    logger.log("Deploy type: Proxy");
+
+    logger.log("====================================================");
+    logger.log("network type: " + network);
+    logger.log("Deploy time: " + new Date().toLocaleString());
+
+    // logger.log("Deploy type: Proxy");
     if (DODOApproveAddress == "") {
       await deployer.deploy(DODOApprove);
       DODOApproveAddress = DODOApprove.address;
@@ -45,19 +51,25 @@ module.exports = async (deployer, network, accounts) => {
       await deployer.deploy(DODOSellHelper);
       DODOSellHelperAddress = DODOSellHelper.address;
     }
-    logger.log("DODOApprove Address: ", DODOApproveAddress);
-    logger.log("DODOSellHelper Address: ", DODOSellHelperAddress);
-    await deployer.deploy(
-      DODOProxyV1,
-      DODOApproveAddress,
-      DODOSellHelperAddress,
-      WETHAddress,
-      chiAddress
-    );
-    logger.log("DODOProxyV1 Address: ", DODOProxyV1.address);
+    if (DODOSwapCalcHelperAddress == "") {
+      await deployer.deploy(DODOSwapCalcHelper, DODOSellHelperAddress);
+      DODOSwapCalcHelperAddress = DODOSwapCalcHelper.address;
+    }
+    // logger.log("DODOApprove Address: ", DODOApproveAddress);
+    // logger.log("DODOSellHelper Address: ", DODOSellHelperAddress);
+    logger.log("DODOSwapCalcHelper Address: ", DODOSwapCalcHelperAddress);
 
-    const DODOApproveInstance = await DODOApprove.at(DODOApproveAddress);
-    var tx = await DODOApproveInstance.setDODOProxy(DODOProxyV1.address);
-    logger.log("DODOApprovce setProxy tx: ", tx.tx);
+    // await deployer.deploy(
+    //   DODOProxyV1,
+    //   DODOApproveAddress,
+    //   DODOSellHelperAddress,
+    //   WETHAddress,
+    //   chiAddress
+    // );
+    // logger.log("DODOProxyV1 Address: ", DODOProxyV1.address);
+
+    // const DODOApproveInstance = await DODOApprove.at(DODOApproveAddress);
+    // var tx = await DODOApproveInstance.setDODOProxy(DODOProxyV1.address);
+    // logger.log("DODOApprovce setProxy tx: ", tx.tx);
   }
 };
diff --git a/migrations/3_deploy_v2.js b/migrations/3_deploy_v2.js
index 91020c7..04f7db5 100644
--- a/migrations/3_deploy_v2.js
+++ b/migrations/3_deploy_v2.js
@@ -19,7 +19,7 @@ const DODOProxyV2 = artifacts.require("DODOV2Proxy01");
 const DODOSellHelper = artifacts.require("DODOSellHelper");
 const DODOCalleeHelper = artifacts.require("DODOCalleeHelper");
 
-const DEPLOY_V2 = true;
+const DEPLOY_V2 = false;
 
 module.exports = async (deployer, network, accounts) => {
     let DODOSellHelperAddress = "";
@@ -72,11 +72,11 @@ module.exports = async (deployer, network, accounts) => {
         //Template
     } else return;
 
-    logger.log("====================================================");
-    logger.log("network type: " + network);
-    logger.log("Deploy time: " + new Date().toLocaleString());
 
     if (DEPLOY_V2) {
+        logger.log("====================================================");
+        logger.log("network type: " + network);
+        logger.log("Deploy time: " + new Date().toLocaleString());
         logger.log("Deploy type: V2");
         if (CloneFactoryAddress == "") {
             await deployer.deploy(CloneFactory);
diff --git a/test/Route/Route.test.ts b/test/Route/Route.test.ts
index da051f1..720975b 100644
--- a/test/Route/Route.test.ts
+++ b/test/Route/Route.test.ts
@@ -105,10 +105,19 @@ async function calcRoute(ctx: DODOContext, fromTokenAmount: string, slippage: nu
     }
   }
 
+  var [returmAmount, midPrices] = await ctx.DODOSwapCalcHelper.methods.calcReturnAmountV1(
+    fromTokenAmount,
+    dodoPairs,
+    directions,
+  ).call();
+  console.log("returnAmount:", returmAmount)
+  console.log("localAmount:", swapAmount)
+  console.log("midPrices:", midPrices)
+
 
   let toAmount = new BigNumber(swapAmount).multipliedBy(1 - slippage).toFixed(0, BigNumber.ROUND_DOWN)
   // console.log("minAmount:",toAmount);
-  let deadline = Math.floor(new Date().getTime()/1000 + 60 * 10);
+  let deadline = Math.floor(new Date().getTime() / 1000 + 60 * 10);
 
   return ctx.DODOProxyV1.methods.dodoSwapV1(
     routes[0].address,
@@ -144,7 +153,7 @@ describe("Trader", () => {
   });
 
   describe("route calc test", () => {
-    it.only("DODO to USDT directly swap", async () => {
+    it("DODO to USDT directly swap", async () => {
       var b_DODO = await ctx.DODO.methods.balanceOf(trader).call()
       var b_USDT = await ctx.USDT.methods.balanceOf(trader).call()
       var c_b_CHI = await ctx.CHI.methods.balanceOf(ctx.DODOProxyV1.options.address).call()
diff --git a/test/utils-v1/Contracts.ts b/test/utils-v1/Contracts.ts
index 48138b6..afd14ab 100644
--- a/test/utils-v1/Contracts.ts
+++ b/test/utils-v1/Contracts.ts
@@ -32,6 +32,7 @@ const SmartApprove = require(`${jsonPath2}DODOApprove.json`)
 const DODOSellHelper = require(`${jsonPath2}DODOSellHelper.json`)
 const WETH = require(`${jsonPath2}WETH9.json`)
 const CHI = require(`${jsonPath2}ChiToken.json`)
+const DODOSwapCalcHelper = require(`${jsonPath2}DODOSwapCalcHelper.json`)
 /******/
 
 import { getDefaultWeb3 } from './EVM';
@@ -57,6 +58,7 @@ export const SMART_SWAP = "DODOV1Proxy01"
 export const SMART_APPROVE = "DODOApprove"
 export const DODO_SELL_HELPER = "DODOSellHelper"
 export const CHI_TOKEN = "ChiToken"
+export const DODO_SWAP_CALC_HELPER = "DODOSwapCalcHelper"
 /******/
 
 var contractMap: { [name: string]: any } = {}
@@ -79,6 +81,7 @@ contractMap[SMART_SWAP] = SmartSwap
 contractMap[SMART_APPROVE] = SmartApprove
 contractMap[DODO_SELL_HELPER] = DODOSellHelper
 contractMap[CHI_TOKEN] = CHI
+contractMap[DODO_SWAP_CALC_HELPER] = DODOSwapCalcHelper
 /******/
 
 interface ContractJson {
diff --git a/test/utils-v1/ProxyContextV1.ts b/test/utils-v1/ProxyContextV1.ts
index 57c9688..61988ba 100644
--- a/test/utils-v1/ProxyContextV1.ts
+++ b/test/utils-v1/ProxyContextV1.ts
@@ -74,6 +74,8 @@ export class DODOContext {
   DODOProxyV1: Contract;
   DODOApprove: Contract;
   DODOSellHelper: Contract;
+  //Helper
+  DODOSwapCalcHelper: Contract;
 
   constructor() { }
 
@@ -238,6 +240,10 @@ export class DODOContext {
     await this.DODOApprove.methods.setDODOProxy(this.DODOProxyV1.options.address).send(this.sendParam(this.Deployer));
 
     // await this.CHI.methods.transfer(this.DODOProxyV1.options.address,140).send(this.sendParam(this.Deployer));
+    
+    this.DODOSwapCalcHelper = await contracts.newContract(
+      contracts.DODO_SWAP_CALC_HELPER,[this.DODOSellHelper.options.address]
+    );
 
     console.log(log.blueText("[Init dodo context]"));
   }
diff --git a/truffle-config.js b/truffle-config.js
index 582f062..fdbcedc 100644
--- a/truffle-config.js
+++ b/truffle-config.js
@@ -68,7 +68,7 @@ module.exports = {
         return new HDWalletProvider(privKey, "https://mainnet.infura.io/v3/" + infuraId);
       },
       gas: 3000000,
-      gasPrice: 45000000000,
+      gasPrice: 50000000000,
       network_id: 1,
       skipDryRun: true
     },