diff --git a/app/config/app.cfg.php b/app/config/app.cfg.php
index 8e312184..8023310a 100644
--- a/app/config/app.cfg.php
+++ b/app/config/app.cfg.php
@@ -14,6 +14,11 @@
 // 附件url
 define('ATTACHMENT_URL', ROOT_URL . 'attachment/');
 
+// office支持实时预览
+define('IS_OFFICE_PREVIEW', (boolean)$appConfig['office_preview']['enanle']);
+define('OFFICE_PREVIEW_API', $appConfig['office_preview']['office_api']);
+define('OFFICE_PREVIEW_SUFFIX_MAP', (array)$appConfig['office_preview']['office_suffix_map']);
+
 // 当前版本号
 define('MASTERLAB_VERSION', $appConfig['version']);
 
diff --git a/app/ctrl/issue/Detail.php b/app/ctrl/issue/Detail.php
index 5b198795..309e557e 100644
--- a/app/ctrl/issue/Detail.php
+++ b/app/ctrl/issue/Detail.php
@@ -314,6 +314,12 @@ public function get()
         foreach ($attachmentDatas as $f) {
             $file = [];
             $file['thumbnailUrl'] = ATTACHMENT_URL . $f['file_name'];
+
+            // 支持office文件实时预览
+            $file_suffix = substr(strrchr( $f['file_name'], '.'), 1);
+            if (IS_OFFICE_PREVIEW && in_array($file_suffix, OFFICE_PREVIEW_SUFFIX_MAP)) {
+                $file['thumbnailUrl'] = OFFICE_PREVIEW_API . ATTACHMENT_URL . $f['file_name'];
+            }
             $file['size'] = $f['file_size'];
             $file['name'] = $f['origin_name'];
             $file['uuid'] = $f['uuid'];
diff --git a/config.tpl.yml b/config.tpl.yml
index 53ae8ddf..ae35ed60 100644
--- a/config.tpl.yml
+++ b/config.tpl.yml
@@ -13,6 +13,11 @@ xhprof:
   enable: false
   rate: 1
 
+office_preview:
+  enanle: false
+  office_api: https://view.officeapps.live.com/op/view.aspx?src=
+  office_suffix_map: ["ppt","pptx","xls","xlsx","doc","docx"]
+
 cache:
   enable: {{cache_enable}}
   expire: 864000