diff --git a/lib/filter.js b/lib/filter.js
index a66b3fc..27fb6e9 100644
--- a/lib/filter.js
+++ b/lib/filter.js
@@ -28,12 +28,18 @@ function logic_html(str, data) {
     var result = Htmlminifier(str, options);
     var saved = ((str.length - result.length) / str.length * 100).toFixed(2);
     log.log('neat the html: %s [ %s saved]', path, saved + '%');
+    var now = new Date();
+    // var prefix='<!-- build time:'+ now.getFullYear() +"年"+(now.getMonth() + 1)+"月"+now.getDate()+"日"
+    // +now.getHours()+":"+now.getMinutes()+":"
+    var prefix = '<!-- build time:' + now.toLocaleString() + " -->";
+    var end = '<!-- rebuild by neat -->';
+    result = prefix + result + end;
     return result;
 };
 
 function logic_css(str, data) {
     var hexo = this,
-        options = hexo.config.neat_css;   
+        options = hexo.config.neat_css;
     // Return if disabled.
     if (false === options.enable) return;
 
@@ -46,13 +52,16 @@ function logic_css(str, data) {
             if (minimatch(path, exclude[i])) return str;
         }
     }
-    
+
     var log = hexo.log || console.log;
-    return new Promise(function (resolve, reject) {
-        new CleanCSS(options).minify(str, function (err, result) {
+    return new Promise(function(resolve, reject) {
+        new CleanCSS(options).minify(str, function(err, result) {
             if (err) return reject(err);
             var saved = ((str.length - result.styles.length) / str.length * 100).toFixed(2);
-            resolve(result.styles);
+            var prefix = '/* build time:' + new Date().toLocaleString() + "*/\n";
+            var end = '\n/* rebuild by neat */';
+            var css_result = prefix + result.styles + end;
+            resolve(css_result);
             log.log('neat the css: %s [ %s saved]', path, saved + '%');
         });
     });
@@ -78,8 +87,10 @@ function logic_js(str, data) {
     var result = UglifyJS.minify(str, options);
     var saved = ((str.length - result.code.length) / str.length * 100).toFixed(2);
     log.log('neat the js: %s [ %s saved]', path, saved + '%');
-
-    return result.code;
+    var prefix = '// build time:' + new Date().toLocaleString() + "\n";
+    var end = '\n//rebuild by neat ';
+    var js_result = prefix + result.code + end;
+    return js_result;
 }
 
 
@@ -88,4 +99,4 @@ module.exports = {
     logic_html: logic_html,
     logic_css: logic_css,
     logic_js: logic_js,
-};
\ No newline at end of file
+};
diff --git a/package.json b/package.json
index 4edd1c7..dfbd348 100644
--- a/package.json
+++ b/package.json
@@ -33,5 +33,5 @@
   "scripts": {
     "test": "echo \"Error: no test specified\" && exit 1"
   },
-  "version": "1.0.2"
+  "version": "1.0.3"
 }