diff --git a/src/utils/stream.js b/src/utils/stream.js
index c92edb01..00f13acc 100644
--- a/src/utils/stream.js
+++ b/src/utils/stream.js
@@ -14,6 +14,7 @@ function zipFiles(zipName, files) {
             let zipFileOutputStream = streamSaver.createWriteStream(zipName);
             // 创建下载文件流  
             const fileIterator = files.values();
+            let Url = null;
             let readableZipStream = new ZIP({
                 async pull(ctrl) {
                     const fileInfo = fileIterator.next();
@@ -23,6 +24,7 @@ function zipFiles(zipName, files) {
                         let { name, url, IsEncapsulated = false } = fileInfo.value;
                         if (IsEncapsulated) {
                             url = await downloadFileToUrl(url)
+                            Url = url
                         }
                         // url = decodeUtf8(url); // 待定，可能做过特殊处理
                         return fetch(url).then(res => {
@@ -43,14 +45,28 @@ function zipFiles(zipName, files) {
                         store.dispatch('trials/setUnLock', false)
                         readableZipStream = null;
                         zipFileOutputStream = null;
+                        if (Url) {
+                            URL.revokeObjectURL(Url)
+                            Url = null
+                        }
                         resolve(true)
                     }).catch(err => {
                         console.log(err);
                         readableZipStream = null;
                         zipFileOutputStream = null;
+                        if (Url) {
+                            URL.revokeObjectURL(Url)
+                            Url = null
+                        }
                         resolve(false)
                     });
             } else {
+                readableZipStream = null;
+                zipFileOutputStream = null;
+                if (Url) {
+                    URL.revokeObjectURL(Url)
+                    Url = null
+                }
                 resolve(false)
             }
         } catch (err) {