diff --git a/app.js b/app.js
index 120becc..463c2f2 100644
--- a/app.js
+++ b/app.js
@@ -75,7 +75,7 @@ app.use(function(err, req, res, next) {
         error: {}
     });
 });
-
+api.checkSnapState();
 api.getSnapByTimer();
 
 module.exports = app;
diff --git a/database/db.js b/database/db.js
index a606b3d..fcf53fa 100644
--- a/database/db.js
+++ b/database/db.js
@@ -561,6 +561,21 @@ db.getTagsBookmarks = function(bookmark_ids) {
     });
 }
 
+db.getBookmarks = function() {
+    var sql = "SELECT id, snap_state FROM `bookmarks`"; // 如果是空的，那查一个不存在的就行了。
+    console.log('getBookmarks', sql);
+
+    return new Promise(function(resolve, reject) {
+        client.query(sql, (err, result) => {
+            if (err) {
+                reject(err);
+            } else {
+                resolve(result);
+            }
+        });
+    });
+}
+
 db.getBookmarkWaitSnap = function(today) {
     var todayNotSnap = today + 31;
     var sql = "SELECT id, url, snap_state FROM `bookmarks` WHERE `snap_state`>=0 AND `snap_state` <= 64  AND snap_state != " + todayNotSnap + " ORDER BY created_at DESC LIMIT 0, 1";
diff --git a/routes/api.js b/routes/api.js
index da737e8..66a2055 100644
--- a/routes/api.js
+++ b/routes/api.js
@@ -527,13 +527,13 @@ api.post('/uploadBookmarkFile', upload.single('bookmark'), function(req, res) {
 
                         var tags = [];
                         item.tags.forEach((tag) => {
-                            allTags.forEach((at) => {
-                                if (at.name == tag) {
-                                    tags.push(at.id);
-                                }
+                                allTags.forEach((at) => {
+                                    if (at.name == tag) {
+                                        tags.push(at.id);
+                                    }
+                                })
                             })
-                        })
-                        // 插入书签
+                            // 插入书签
                         db.addBookmark(userId, bookmark) // 插入书签
                             .then((bookmark_id) => {
                                 db.delBookmarkTags(bookmark_id); // 不管3721，先删掉旧的分类
@@ -617,6 +617,23 @@ api.post('/getTitle', function(req, response) {
     });
 })
 
+api.checkSnapState = function() {
+    db.getBookmarks()
+        .then((bookmarks) => {
+            bookmarks.forEach(bookmark => {
+                var id = bookmark.id;
+                var snap_state = bookmark.snap_state;
+                var finePath = './public/images/snap/' + id + '.png'
+                fs.exists(finePath, function(exists) {
+                    if (!exists && snap_state == -1) {
+                        db.updateBookmarkSnapState(id, 0);
+                    }
+                });
+            })
+        })
+        .catch((err) => console.log('getBookmarks err', err));
+}
+
 api.getSnapByTimer = function() {
     console.log('getSnapByTimer...........');
     var timeout = 5000