diff --git a/packages/url_launcher/url_launcher_ohos/ohos/src/main/ets/components/plugin/UrlLauncher.ets b/packages/url_launcher/url_launcher_ohos/ohos/src/main/ets/components/plugin/UrlLauncher.ets
index a2ad29ee560874410a5a48cebef05c0ad865928e..d1d21f2f4c645bb49bd6f0bad61211a0a915db6d 100644
--- a/packages/url_launcher/url_launcher_ohos/ohos/src/main/ets/components/plugin/UrlLauncher.ets
+++ b/packages/url_launcher/url_launcher_ohos/ohos/src/main/ets/components/plugin/UrlLauncher.ets
@@ -161,15 +161,15 @@ export class UrlLauncher implements UrlLauncherApi {
   // 只支持沙箱路径
   launchFile(url: string): boolean {
     let fileUrl = this.parseUrl(url, UrlLauncher.LAUNCH_TYPE_FILE + '://');
-    let filePath = this.context.filesDir + fileUrl;
     // 将沙箱路径转换为uri
-    let uriFromPath = fileuri.getUriFromPath(filePath);
+    let uriFromPath = fileuri.getUriFromPath(fileUrl);
+    let decodedPath = decodeURIComponent(uriFromPath);
     Log.d(TAG, 'launchFile:' + fileUrl + '  uriFromPath:' + uriFromPath);
     let want: Want = {
       flags: wantConstant.Flags.FLAG_AUTH_WRITE_URI_PERMISSION | wantConstant.Flags.FLAG_AUTH_READ_URI_PERMISSION,
       // 配置分享应用的隐式拉起规则
       action: 'ohos.want.action.viewData',
-      uri: uriFromPath,
+      uri: decodedPath,
     }
     this.context.startAbility(want)
       .then(() => {