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 b36a63961a462ec454531336bf6f3964d1297c83..505cbe045c4592c580f42a1c6aeb3b71317aa36a 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
@@ -150,15 +150,15 @@ 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(() => {