diff --git a/packages/chameleon-tool/configs/getCommonConfig.js b/packages/chameleon-tool/configs/getCommonConfig.js
index 9c5eed53f..ffc3c98dd 100644
--- a/packages/chameleon-tool/configs/getCommonConfig.js
+++ b/packages/chameleon-tool/configs/getCommonConfig.js
@@ -161,7 +161,13 @@ module.exports = function (options) {
   // 兼容旧版api
   let apiPrefix = options.apiPrefix || devApiPrefix;
   // 新版api 优先读取domainMap
-  let domain = options.domain || {};
+  // 浅拷贝不影响config中的domain
+  let domain = {};
+  if (options.domain) {
+    domain = {
+      ...options.domain
+    }
+  }
 
 
   if (options.media === 'dev') {
diff --git a/packages/chameleon-tool/lib/config.js b/packages/chameleon-tool/lib/config.js
index 00c4678a7..c64b9c0e7 100644
--- a/packages/chameleon-tool/lib/config.js
+++ b/packages/chameleon-tool/lib/config.js
@@ -161,7 +161,7 @@ _.get = function() {
     if (baseConfig) {
       platforms.forEach(platform => {
         if (chameleonConfig[platform]) {
-          utils.merge(chameleonConfig[platform], baseConfig);
+          utils.merge(chameleonConfig[platform], JSON.parse(JSON.stringify(baseConfig)));
         }
       })
       delete chameleonConfig.base;