diff --git a/themes/beauty/controller/SiteController.php b/themes/beauty/controller/SiteController.php
index 50d0271..7871818 100644
--- a/themes/beauty/controller/SiteController.php
+++ b/themes/beauty/controller/SiteController.php
@@ -296,7 +296,7 @@ Class SiteController extends Controller {
                                 $url = $cachedData['snapshot'];
                                 $cacheSubDir = 'dir';
                                 $size = 'vm';
-                                Common::saveCacheToFile($cacheKey, compact('url', 'img_id', 'size'), $cacheSubDir);
+                                Common::saveCacheToFile($cacheKey, compact('url', 'size'), $cacheSubDir);
                             }
                         }
                     }else {
@@ -310,15 +310,19 @@ Class SiteController extends Controller {
                             $expireSeconds = FSC::$app['config']['screenshot_expire_seconds'];  //有效期3650天
                             $cacheSubDir = 'image';
                             $cachedData = Common::getCacheFromFile($cacheKey_smimg, $expireSeconds, $cacheSubDir);
-                            if (!empty($cachedData)) {
+                            if (!empty($cachedData)) {      //已经有缩略图
                                 $url = $cachedData;
-                                $img_id = '';   //无需再次生成小尺寸图片
                                 $size = 'small';
+
+                                //当前目录有缩略图的时候才缓存
+                                $cacheSubDir = 'dir';
+                                Common::saveCacheToFile($cacheKey, compact('url', 'size'), $cacheSubDir);
                             }
+                        }else if (empty(FSC::$app['config']['enableSmallImage']) || FSC::$app['config']['enableSmallImage'] === 'false') {
+                            //如果关闭了缩略图功能则缓存原图
+                            $cacheSubDir = 'dir';
+                            Common::saveCacheToFile($cacheKey, compact('url', 'size'), $cacheSubDir);
                         }
-
-                        $cacheSubDir = 'dir';
-                        Common::saveCacheToFile($cacheKey, compact('url', 'img_id', 'size'), $cacheSubDir);
                     }
                 }else {
                     $code = 0;
@@ -326,11 +330,10 @@ Class SiteController extends Controller {
                 }
             }else {
                 $url = $cachedData['url'];
-                $img_id = $cachedData['img_id'];
             }
         }
 
-        return $this->renderJson(compact('code', 'msg', 'url', 'img_id'));
+        return $this->renderJson(compact('code', 'msg', 'url'));
     }
 
     //保存目录封面图到缓存
diff --git a/www/js/beauty.js b/www/js/beauty.js
index 300d334..9da2e1a 100644
--- a/www/js/beauty.js
+++ b/www/js/beauty.js
@@ -311,15 +311,6 @@ $('.dir_item').each(function(index, el) {
                 }
                 imgHtml += ' class="bor_radius im_img">';
                 $(el).find('.im_img_title').before(imgHtml);
-
-                if (data.img_id) {
-                    setTimeout(function() {
-                        var imgs = $(el).find('.im_img');
-                        if (imgs.length > 0) {
-                            saveSmallImg(imgs[0], id);
-                        }
-                    }, 100);
-                }
             }else {
                 //console.warn('目录 %s 里没有任何图片', id);
                 var imgHtml = '<img src="/img/default.png">';