diff --git a/ace-loader/src/genAbc-plugin.js b/ace-loader/src/genAbc-plugin.js
index c74e5a8d12eeb435065d2961e7918e64f3412762..358973c6d84f2fca4ff41c4fd5c634d1323382ff 100644
--- a/ace-loader/src/genAbc-plugin.js
+++ b/ace-loader/src/genAbc-plugin.js
@@ -63,6 +63,7 @@ const ES2ABC = 'es2abc';
 const WINDOWS = 'Windows_NT';
 const LINUX = 'Linux';
 const MAC = 'Darwin';
+const HARMONYOS = 'HarmonyOS';
 const FILESINFO_TXT = 'filesInfo.txt';
 const manageBunldeWorkersScript = 'manage-bundle-workers.js';
 const PREBUILDINFO_JSON = 'preBuildInfo.json';
@@ -528,10 +529,14 @@ export function isMacOs() {
   return os.type() === MAC;
 }
 
+export function isHarmonyOs() {
+  return os.type() === HARMONYOS;
+}
+
 export function maxFilePathLength() {
   if (isWindows()) {
     return 32766;
-  } else if (isLinux()) {
+  } else if (isLinux() || isHarmonyOs()) {
     return 4095;
   } else if (isMacOs()) {
     return 1016;