diff --git a/packages/wxa-cli/src/builder.js b/packages/wxa-cli/src/builder.js
index 473402a4..a43f0150 100644
--- a/packages/wxa-cli/src/builder.js
+++ b/packages/wxa-cli/src/builder.js
@@ -123,11 +123,14 @@ class Builder {
                     let changedDeps;
                     try {
                         this.schedule.$depPending.push(mdl);
-
+                        if (mdl.childNodes && mdl.childNodes.size) this.walkChildNodesTreeAndMark(mdl);
                         await this.hooks.rebuildModule.promise(this.schedule, mdl);
 
                         changedDeps = await this.schedule.$doDPA();
-                        await this.optimizeAndGenerate(changedDeps, cmd);
+
+                        let map = new Map(changedDeps.map((mdl)=>[mdl.src, mdl]));
+
+                        await this.optimizeAndGenerate(map, this.schedule.appConfigs, cmd);
                     } catch (e) {
                         logger.error('编译失败', e);
                     }
@@ -173,6 +176,15 @@ class Builder {
         process.on('SIGHUP', h);
     }
 
+    walkChildNodesTreeAndMark(mdl) {
+        // mark tree nodes as changed
+        mdl.childNodes.forEach((child)=>{
+            child.color = color.CHANGED;
+
+            if (child.childNodes && child.childNodes.size) this.walkChildNodesTreeAndMark(child);
+        });
+    }
+
     async build(cmd) {
         if (cmd.verbose) logger.info('WxaConfigs', this.wxaConfigs);
 
diff --git a/packages/wxa-cli/src/schedule.js b/packages/wxa-cli/src/schedule.js
index 0e4badf9..3af4be08 100644
--- a/packages/wxa-cli/src/schedule.js
+++ b/packages/wxa-cli/src/schedule.js
@@ -5,7 +5,7 @@ import globby from 'globby';
 import debugPKG from 'debug';
 import {SyncHook} from 'tapable';
 
-import {readFile, isFile} from './utils';
+import {readFile, isFile, getHash, getHashWithString} from './utils';
 import bar from './helpers/progressBar';
 import logger from './helpers/logger';
 import COLOR from './const/color';
@@ -190,6 +190,7 @@ class Schedule {
 
                 let oldPages = new Map(this.$pageArray.entries());
                 let newPages = this.addPageEntryPoint();
+                newPages = new Map(newPages.map((page)=>[page.src, page]));
                 this.cleanUpPages(newPages, oldPages);
             }
 
@@ -285,6 +286,7 @@ class Schedule {
 
         // the amount of child output is decided by his parent module.
         // normally one, emit multi while child module is npm package.
+        // debugger;
         let child = {
             ...dep,
             color: COLOR.INIT,
@@ -298,6 +300,16 @@ class Schedule {
         if (this.$indexOfModule.has(dep.src)) {
             let indexedModule = this.$indexOfModule.get(dep.src);
 
+            // check hash
+            child.hash = !child.isAbstract && child.content ? getHashWithString(child.content) : getHash(child.src);
+
+            if (child.hash !== indexedModule.hash) {
+                // module changed, clean up mdl.
+                indexedModule.content = child.content;
+                indexedModule.code = void(0);
+                indexedModule.hash = child.hash;
+            }
+
             // merge reference, cause the module is parsed
             if (indexedModule.reference instanceof Map) {
                 indexedModule.reference.set(mdl.src, mdl);
@@ -312,7 +324,7 @@ class Schedule {
 
             child = indexedModule;
         }
-
+        // debugger;
         if (child.color !== COLOR.COMPILED) this.$depPending.push(child);
         if (child.color === COLOR.INIT) this.$indexOfModule.set(child.src, child);
 
diff --git a/packages/wxa-cli/src/utils.js b/packages/wxa-cli/src/utils.js
index e0b1d3d5..b92a03a6 100644
--- a/packages/wxa-cli/src/utils.js
+++ b/packages/wxa-cli/src/utils.js
@@ -145,3 +145,7 @@ export function getHash(filepath) {
 
     return content == null ? Date.now() : crypto.createHash('md5').update(content).digest('hex');
 }
+
+export function getHashWithString(content) {
+    return content == null ? Date.now() : crypto.createHash('md5').update(content).digest('hex');
+}