diff --git a/Application/Common/Common/function.php b/Application/Common/Common/function.php
index 4d3b136fa..3347c675a 100644
--- a/Application/Common/Common/function.php
+++ b/Application/Common/Common/function.php
@@ -1009,7 +1009,7 @@ function get_cover($cover_id, $field = null, $root = 1, $flag = true)
     $picture = M('Picture')->where(array('status' => 1))->getById($cover_id);
     if (get_tool_status("oss_storage") == 1) {
         if (!empty($picture['oss_url'])) {
-            return $picture['oss_url'];
+            return str_replace('http:', 'https:', $picture['oss_url']);
         } else {
             return '//' . $_SERVER['HTTP_HOST'] . __ROOT__ . $picture['path'];
         }