diff --git a/convertxml/js_convertxml.cpp b/convertxml/js_convertxml.cpp
index 351c53a..ed42fa6 100755
--- a/convertxml/js_convertxml.cpp
+++ b/convertxml/js_convertxml.cpp
@@ -313,6 +313,7 @@ namespace OHOS::Xml {
         Replace(strXml, "\\r", "\r");
         Replace(strXml, "\\n", "\n");
         Replace(strXml, "\\v", "\v");
+        Replace(strXml, "\\t", "\t");
         Replace(strXml, "]]><![CDATA", "]]> <![CDATA");
         size_t len = strXml.size();
         doc = xmlParseMemory(strXml.c_str(), len);
diff --git a/convertxml/src/js_convertxml.ts b/convertxml/src/js_convertxml.ts
index 5349a40..9d4ea72 100644
--- a/convertxml/src/js_convertxml.ts
+++ b/convertxml/src/js_convertxml.ts
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2021 Huawei Device Co., Ltd.
+ * Copyright (c) 2022 Huawei Device Co., Ltd.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
@@ -13,53 +13,55 @@
  * limitations under the License.
  */
 
-declare function requireInternal(s : string) : any;
-const convertXml = requireInternal("ConvertXML");
+interface ReceiveObject{
+    obj : Object;
+    spaces ?: string | number;
+}
+
+interface NativeConvertXml {
+    new() : NativeConvertXml;
+    convert(strXml : string, options ?: Object) : ReceiveObject;
+}
+interface ConvertXML {
+    ConvertXml : NativeConvertXml;
+}
+declare function requireInternal(s : string) : ConvertXML;
+const convertXml = requireInternal('ConvertXML');
+
 class ConvertXML {
-    convertxmlclass : any;
+    convertxmlclass : NativeConvertXml;
     constructor() {
         this.convertxmlclass = new convertXml.ConvertXml();
     }
-    convert(strXml : string, options : any) {
+    convert(strXml : string, options ?: Object) {
         strXml = DealXml(strXml);
         let converted = this.convertxmlclass.convert(strXml, options);
-        let space = 0;
-        if (converted.hasOwnProperty("spaces")) {
-            space = converted.spaces;
+        let strEnd : string = '';
+        if (converted.hasOwnProperty('spaces')) {
+            let space : string | number | undefined = converted.spaces;
             delete converted.spaces;
         }
-        var strEnd = JSON.stringify(converted, null, space);
-        var idx = 0;
-        while ((idx = strEnd.indexOf('\\t')) != -1) {
-            strEnd = strEnd.substring(0, idx) + '\t' + strEnd.substring(idx + 2);
-        }
-        while ((idx = strEnd.indexOf('\\n')) != -1) {
-            strEnd = strEnd.substring(0, idx) + '\n' + strEnd.substring(idx + 2);
-        }
-        while ((idx = strEnd.indexOf('\\')) != -1) {
-            strEnd = strEnd.substring(0, idx) + '' + strEnd.substring(idx + 1);
-        }
-        return strEnd;
+        return converted;
     }
 }
 
 function DealXml(strXml : string)
 {
-    var idx = 0;
-    var idxSec = 0;
-    var idxThir = 0;
-    var idxCData = 0;
-    var idxCDataSec = 0;
-    while ((idx = strXml.indexOf(']]><![CDATA')) != -1) {
+    let idx : number = 0;
+    let idxSec : number = 0;
+    let idxThir : number = 0;
+    let idxCData : number = 0;
+    let idxCDataSec : number = 0;
+    while ((idx = strXml.indexOf(']]><![CDATA')) !== -1) {
         strXml = strXml.substring(0, idx + 3) + ' ' + strXml.substring(idx + 3);
     }
-    while ((idx = strXml.indexOf('>', idxSec)) != -1) {
+    while ((idx = strXml.indexOf('>', idxSec)) !== -1) {
         idxThir = strXml.indexOf('<', idx);
         strXml = DealPriorReplace(strXml, idx, idxThir);
-        if (strXml.indexOf('<', idx) != -1) {
+        if (strXml.indexOf('<', idx) !== -1) {
             idxCData = strXml.indexOf('<![CDATA', idxCDataSec);
             idxSec = strXml.indexOf('<', idx);
-            if (idxSec == idxCData) {
+            if (idxSec === idxCData) {
                 idxSec = strXml.indexOf(']]>', idxCData);
                 strXml = DealLaterReplace(strXml, idx, idxThir);
                 idxCDataSec = idxSec;
@@ -72,20 +74,20 @@ function DealXml(strXml : string)
     return strXml;
 }
 
-function DealPriorReplace(strXml : string, idx : any, idxThir : any)
+function DealPriorReplace(strXml : string, idx : number, idxThir : number)
 {
-    var i = idx + 1;
+    let i : number = idx + 1;
     for (; i < idxThir ; i++) {
-        var cXml = strXml.charAt(i);
-        if (cXml != '\n' && cXml != '\v' && cXml != '\t' && cXml != ' ')
+        let cXml : string = strXml.charAt(i);
+        if (cXml !== '\n' && cXml !== '\v' && cXml !== '\t' && cXml !== ' ')
         {
             break;
         }
     }
-    var j = idx + 1;
+    let j : number = idx + 1;
     for (; j < strXml.indexOf('<', idx) ; j++) {
-        var cXml = strXml.charAt(j);
-        if (i != idxThir) {
+        let cXml : string = strXml.charAt(j);
+        if (i !== idxThir) {
             switch (cXml) {
                 case '\n':
                     strXml = strXml.substring(0, j) + '\\n' + strXml.substring(j + 1);
@@ -107,11 +109,11 @@ function DealPriorReplace(strXml : string, idx : any, idxThir : any)
     return strXml;
 }
 
-function DealLaterReplace(strXml : string, idx : any, idxThir : any)
+function DealLaterReplace(strXml : string, idx : number, idxThir : number)
 {
-    var i = idx + 1;
+    let i : number = idx + 1;
     for (; i < idxThir ; i++) {
-        var cXml = strXml.charAt(i)
+        let cXml : string = strXml.charAt(i)
         switch (cXml) {
             case '\n':
                 strXml = strXml.substring(0, i) + '\\n' + strXml.substring(i + 1);
@@ -129,4 +131,6 @@ function DealLaterReplace(strXml : string, idx : any, idxThir : any)
     return strXml;
 }
 
-export default ConvertXML
\ No newline at end of file
+export default {
+    ConvertXML : ConvertXML
+}
\ No newline at end of file