diff --git a/util/BUILD.gn b/util/BUILD.gn
index ea5e47e..cc2856c 100755
--- a/util/BUILD.gn
+++ b/util/BUILD.gn
@@ -11,8 +11,33 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+import("//ark/ts2abc/ts2panda/ts2abc_config.gni")
 import("//build/ohos.gni")
 import("//build/ohos/ace/ace.gni")
+import("//foundation/ace/ace_engine/ace_config.gni")
+
+# compile .js to .abc.
+action("gen_util_abc") {
+  visibility = [ ":*" ]
+  script = "//ark/ts2abc/ts2panda/scripts/generate_js_bytecode.py"
+
+  args = [
+    "--src-js",
+    rebase_path("//base/compileruntime/js_util_module/util/util_js.js"),
+    "--dst-file",
+    rebase_path(target_out_dir + "/util.abc"),
+    "--node",
+    rebase_path("${node_path}"),
+    "--frontend-tool-path",
+    rebase_path("${ts2abc_build_path}"),
+    "--node-modules",
+    rebase_path("${node_modules}"),
+  ]
+  deps = [ "//ark/ts2abc/ts2panda:ark_ts2abc_build" ]
+
+  inputs = [ "//base/compileruntime/js_util_module/util/util_js.js" ]
+  outputs = [ target_out_dir + "/util.abc" ]
+}
 
 base_output_path = get_label_info(":util_js", "target_out_dir")
 util_js_obj_path = base_output_path + "/util.o"
@@ -22,6 +47,14 @@ gen_js_obj("util_js") {
   output = util_js_obj_path
 }
 
+abc_output_path = get_label_info(":util_abc", "target_out_dir")
+util_abc_obj_path = abc_output_path + "/util_abc.o"
+gen_js_obj("util_abc") {
+  input = "$target_out_dir/util.abc"
+  output = util_abc_obj_path
+  dep = ":gen_util_abc"
+}
+
 ohos_shared_library("util") {
   include_dirs = [
     "//foundation/ace/napi",
@@ -41,6 +74,7 @@ ohos_shared_library("util") {
   ]
 
   deps = [
+    ":util_abc",
     ":util_js",
     "//base/compileruntime/js_util_module/util/:util_js",
     "//foundation/ace/napi/:ace_napi",
diff --git a/util/js_textdecoder.cpp b/util/js_textdecoder.cpp
index 4d3c9c6..d0b2a40 100755
--- a/util/js_textdecoder.cpp
+++ b/util/js_textdecoder.cpp
@@ -45,7 +45,8 @@ namespace OHOS::Util {
         (i32Flag & static_cast<uint32_t>(ConverterFlags::FATAL_FLG)) ==
         static_cast<uint32_t>(ConverterFlags::FATAL_FLG);
         UErrorCode codeflag = U_ZERO_ERROR;
-        UConverter *conv = ucnv_open(encStr_.c_str(), &codeflag);
+        char *pStr = const_cast<char*>(encStr_.c_str());
+        UConverter *conv = ucnv_open(pStr, &codeflag);
         if (U_FAILURE(codeflag)) {
             HILOG_ERROR("ucnv_open failed !");
             return;
@@ -174,7 +175,7 @@ namespace OHOS::Util {
     void TextDecoder::SetBomFlag(const UChar *arr, const UErrorCode codeFlag, const DecodeArr decArr,
                                  size_t &rstLen, bool &bomFlag)
     {
-        if (arr == nullptr) {
+        if (arr == nullptr ) {
             return;
         }
         if (U_SUCCESS(codeFlag)) {
diff --git a/util/native_module_util.cpp b/util/native_module_util.cpp
index 3681c05..4507e2a 100755
--- a/util/native_module_util.cpp
+++ b/util/native_module_util.cpp
@@ -27,6 +27,8 @@
 
 extern const char _binary_util_js_js_start[];
 extern const char _binary_util_js_js_end[];
+extern const char _binary_util_abc_start[];
+extern const char _binary_util_abc_end[];
 namespace OHOS::Util {
     static std::string temp = "cdfijoOs";
     napi_value RationalNumberClass = nullptr;
@@ -113,29 +115,34 @@ namespace OHOS::Util {
         napi_value *argv = nullptr;
         if (argc > 0) {
             argv = new napi_value[argc];
+            napi_get_cb_info(env, info, &argc, argv, nullptr, nullptr);
+            char *format = nullptr;
+            size_t formatsize = 0;
+            napi_get_value_string_utf8(env, argv[0], nullptr, 0, &formatsize);
+            if (formatsize > 0) {
+                format = new char[formatsize + 1];
+                napi_get_value_string_utf8(env, argv[0], format, formatsize + 1, &formatsize);
+                std::string str = format;
+                delete []format;
+                delete []argv;
+                argv = nullptr;
+                format = nullptr;
+                return FormatString(env, str);
+            } else {
+                return;
+            }
+            napi_value res = nullptr;
+            NAPI_CALL(env, napi_get_undefined(env, &res));
+            return res;
+        } else {
+            return;
         }
-        napi_get_cb_info(env, info, &argc, argv, nullptr, nullptr);
-        char *format = nullptr;
-        size_t formatsize = 0;
-        napi_get_value_string_utf8(env, argv[0], nullptr, 0, &formatsize);
-        if (formatsize > 0) {
-            format = new char[formatsize + 1];
-            napi_get_value_string_utf8(env, argv[0], format, formatsize + 1, &formatsize);
-            std::string str = format;
-            delete []format;
-            delete []argv;
-            argv = nullptr;
-            format = nullptr;
-            return FormatString(env, str);
-        }
-        napi_value res = nullptr;
-        NAPI_CALL(env, napi_get_undefined(env, &res));
-        return res;
     }
 
     static std::string PrintfString(const std::string &format, const std::vector<std::string> &value)
     {
-        std::string printInfo = DealWithPrintf(format, value);
+        std::string printInfo;
+        printInfo = DealWithPrintf(format, value);
         return printInfo;
     }
 
@@ -843,4 +850,15 @@ namespace OHOS::Util {
             *buflen = _binary_util_js_js_end - _binary_util_js_js_start;
         }
     }
-}
\ No newline at end of file
+    // util JS register
+    extern "C"
+    __attribute__((visibility("default"))) void NAPI_util_GetABCCode(const char** buf, int* buflen)
+    {
+        if (buf != nullptr) {
+            *buf = _binary_util_abc_start;
+        }
+        if (buflen != nullptr) {
+            *buflen = _binary_util_abc_end - _binary_util_abc_start;
+        }
+    }
+}