diff --git a/services/file_extension_hap/entry/src/main/ets/FileExtensionAbility/FileExtensionAbility.ts b/services/file_extension_hap/entry/src/main/ets/FileExtensionAbility/FileExtensionAbility.ts
index 1a16573b1eea995a9ca7a39ffa5b80295662a202..2821b12ec7530b72c17a11d5b3fbefe9f4fd01de 100644
--- a/services/file_extension_hap/entry/src/main/ets/FileExtensionAbility/FileExtensionAbility.ts
+++ b/services/file_extension_hap/entry/src/main/ets/FileExtensionAbility/FileExtensionAbility.ts
@@ -768,6 +768,23 @@ export default class FileExtAbility extends Extension {
     return `file://docs/storage/hmdfs/${path}`;
   }
 
+  getHmdfsPath(): {}[] {
+    let rootPathHmdfs = '/storage/hmdfs';
+    let hmdfsInfoList = [];
+    let hmdfsName = fs.listFileSync(rootPathHmdfs);
+    for (let i = 0; i < hmdfsName.length; i++) {
+      let hmdfsInfo = {
+        uri: this.hmdfsPath2uri(hmdfsName[i]),
+        displayName: hmdfsName[i],
+        relativePath: '/storage/hmdfs/' + hmdfsName[i],
+        deviceType: deviceType.DEVICE_SHARED_TERMINAL,
+        deviceFlags: deviceFlag.SUPPORTS_READ | deviceFlag.SUPPORTS_WRITE,
+      };
+      hmdfsInfoList.push(hmdfsInfo);
+    }
+    return hmdfsInfoList;
+  }
+
   getRoots() {
     let roots = [
       {
@@ -802,20 +819,7 @@ export default class FileExtAbility extends Extension {
       roots = roots.concat(volumeInfoList);
 
       try {
-        let rootPathHmdfs = '/storage/hmdfs';
-        let hmdfsInfoList = [];
-        let hmdfsName = fs.listFileSync(rootPathHmdfs);
-        for (let i = 0; i < hmdfsName.length; i++) {
-          let hmdfsInfo = {
-            uri: this.hmdfsPath2uri(hmdfsName[i]),
-            displayName: hmdfsName[i],
-            relativePath: '/storage/hmdfs/' + hmdfsName[i],
-            deviceType: deviceType.DEVICE_SHARED_TERMINAL,
-            deviceFlags: deviceFlag.SUPPORTS_READ | deviceFlag.SUPPORTS_WRITE,
-          };
-          hmdfsInfoList.push(hmdfsInfo);
-        }
-        roots = roots.concat(hmdfsInfoList);
+        roots = roots.concat(getHmdfsPath());
       } catch (e) {
         hilog.info(DOMAIN_CODE, TAG, 'getRoots errorcode: ' + e.code, ' message: ' + e.message);
       }