diff --git a/common/rpc-service.c b/common/rpc-service.c
index fc7e97d..481e771 100644
--- a/common/rpc-service.c
+++ b/common/rpc-service.c
@@ -2283,6 +2283,13 @@ seafile_query_zip_progress (const char *token, GError **error)
                                                 token, error);
 }
 
+int
+seafile_cancel_zip_task (const char *token, GError **error)
+{
+    return zip_download_mgr_cancel_zip_task (seaf->zip_download_mgr,
+                                             token);
+}
+
 int
 seafile_add_share (const char *repo_id, const char *from_email,
                    const char *to_email, const char *permission, GError **error)
diff --git a/include/seafile-rpc.h b/include/seafile-rpc.h
index 458367b..ccb46ee 100644
--- a/include/seafile-rpc.h
+++ b/include/seafile-rpc.h
@@ -500,6 +500,9 @@ seafile_web_query_access_token (const char *token, GError **error);
 char *
 seafile_query_zip_progress (const char *token, GError **error);
 
+int
+seafile_cancel_zip_task (const char *token, GError **error);
+
 GObject *
 seafile_get_checkout_task (const char *repo_id, GError **error);
 
diff --git a/python/seafile/rpcclient.py b/python/seafile/rpcclient.py
index 9c71476..75bb665 100644
--- a/python/seafile/rpcclient.py
+++ b/python/seafile/rpcclient.py
@@ -280,6 +280,10 @@ class SeafServerRpcClient(ccnet.RpcClientBase):
         pass
     query_zip_progress = seafile_query_zip_progress
 
+    @searpc_func("int", ["string"])
+    def cancel_zip_task(token):
+        pass
+
     ###### GC    ####################
     @searpc_func("int", [])
     def seafile_gc():
diff --git a/python/seaserv/api.py b/python/seaserv/api.py
index ef6d917..e9bfc08 100644
--- a/python/seaserv/api.py
+++ b/python/seaserv/api.py
@@ -49,6 +49,9 @@ class SeafileAPI(object):
         """
         return seafserv_rpc.query_zip_progress(token)
 
+    def cancel_zip_task(self, token):
+        return seafserv_rpc.cancel_zip_task(token)
+
     # password
 
     def is_password_set(self, repo_id, username):
diff --git a/server/pack-dir.c b/server/pack-dir.c
index b5ae479..7bf251f 100644
--- a/server/pack-dir.c
+++ b/server/pack-dir.c
@@ -326,6 +326,11 @@ archive_dir (PackDirData *data,
     }
 
     for (ptr = dir->entries; ptr; ptr = ptr->next) {
+        if (progress->canceled) {
+            ret = -1;
+            goto out;
+        }
+
         dent = ptr->data;
         if (S_ISREG(dent->mode)) {
             ret = add_file_to_archive (data, dirpath, dent);
@@ -405,6 +410,8 @@ archive_multi (PackDirData *data, GList *dirent_list,
     SeafDirent *dirent;
 
     for (iter = dirent_list; iter; iter = iter->next) {
+        if (progress->canceled)
+            return -1;
         dirent = iter->data;
         if (S_ISREG(dirent->mode)) {
             if (add_file_to_archive (data, "", dirent) < 0) {
@@ -447,13 +454,19 @@ pack_files (const char *store_id,
     if (strcmp (dirname, "") != 0) {
         // Pack dir
         if (archive_dir (data, (char *)internal, "", progress) < 0) {
-            seaf_warning ("Failed to archive dir.\n");
+            if (progress->canceled)
+                seaf_warning ("Zip task for dir %s canceled.\n", dirname);
+            else
+                seaf_warning ("Failed to archive dir %s.\n", dirname);
             ret = -1;
         }
     } else {
         // Pack multi
         if (archive_multi (data, (GList *)internal, progress) < 0) {
-            seaf_warning ("Failed to archive multi files.\n");
+            if (progress->canceled)
+                seaf_warning ("Archiving multi files canceled.\n");
+            else
+                seaf_warning ("Failed to archive multi files.\n");
             ret = -1;
         }
     }
diff --git a/server/pack-dir.h b/server/pack-dir.h
index 7979384..a2f459e 100644
--- a/server/pack-dir.h
+++ b/server/pack-dir.h
@@ -10,6 +10,7 @@ typedef struct Progress {
     int total;
     char *zip_file_path;
     gint64 expire_ts;
+    gboolean canceled;
 } Progress;
 
 int
diff --git a/server/seaf-server.c b/server/seaf-server.c
index 4f73581..24b11d9 100644
--- a/server/seaf-server.c
+++ b/server/seaf-server.c
@@ -591,6 +591,10 @@ static void start_rpc_service (CcnetClient *client, int cloud_mode)
                                      seafile_query_zip_progress,
                                      "seafile_query_zip_progress",
                                      searpc_signature_string__string());
+    searpc_server_register_function ("seafserv-rpcserver",
+                                     seafile_cancel_zip_task,
+                                     "cancel_zip_task",
+                                     searpc_signature_int__string());
 
     /* Copy task related. */
 
diff --git a/server/zip-download-mgr.c b/server/zip-download-mgr.c
index c5a3bc1..120d454 100644
--- a/server/zip-download-mgr.c
+++ b/server/zip-download-mgr.c
@@ -611,3 +611,14 @@ zip_download_mgr_del_zip_progress (ZipDownloadMgr *mgr,
 {
     remove_progress_by_token (mgr->priv, token);
 }
+
+int
+zip_download_mgr_cancel_zip_task (ZipDownloadMgr *mgr,
+                                  const char *token)
+{
+    Progress *progress = get_progress_obj (mgr->priv, token);
+    if (progress)
+        progress->canceled = TRUE;
+
+    return 0;
+}
diff --git a/server/zip-download-mgr.h b/server/zip-download-mgr.h
index 716515d..4ac8a94 100644
--- a/server/zip-download-mgr.h
+++ b/server/zip-download-mgr.h
@@ -30,4 +30,8 @@ void
 zip_download_mgr_del_zip_progress (ZipDownloadMgr *mgr,
                                    const char *token);
 
+int
+zip_download_mgr_cancel_zip_task (ZipDownloadMgr *mgr,
+                                  const char *token);
+
 #endif