diff --git a/build-tools/intToNumber.js b/build-tools/intToNumber.js
index 310be81d728c6ce95e91c9d654e8deeb8e11aa8f..92a43c7f00d84e6b899ec179176da281ab2eb6d3 100644
--- a/build-tools/intToNumber.js
+++ b/build-tools/intToNumber.js
@@ -299,11 +299,15 @@ function parseJSDocVisitEachChild1(context, node) {
  * @param {content} 文本内容 
  */
 function applJSDocTransformations(typeExpr, newTypeExpr, tagDataList, isChange) {
+  if (!typeExpr && !newTypeExpr) {
+    return;
+  }
   const printer = ts.createPrinter({ newLine: ts.NewLineKind.LineFeed });
   const finalContent = printer.printNode(ts.EmitHint.Unspecified, newTypeExpr);
   if (finalContent.includes('number') && typeExpr.kind === ts.SyntaxKind.JSDocNullableType && !finalContent.includes('?number') && isChange) {
     if (typeExpr.type.type && typeExpr.type.type.kind === ts.SyntaxKind.UnionType) {
       const data = {
+        isDelete: false,
         pos: typeExpr.pos,
         end: typeExpr.end,
         convertedText: '?' + `(${finalContent})`
@@ -311,6 +315,7 @@ function applJSDocTransformations(typeExpr, newTypeExpr, tagDataList, isChange)
       tagDataList.push(data);
     } else {
       const data = {
+        isDelete: false,
         pos: typeExpr.pos,
         end: typeExpr.end,
         convertedText: '?' + finalContent
@@ -319,6 +324,7 @@ function applJSDocTransformations(typeExpr, newTypeExpr, tagDataList, isChange)
     }
   } else if (finalContent.includes('number')) {
     const data = {
+      isDelete: true,
       pos: typeExpr.pos,
       end: typeExpr.end,
       convertedText: finalContent
@@ -338,7 +344,11 @@ function changeContent(tagDataList) {
   for (const data of tagDataList) {
     const before = jsDocContent.substring(0, data.pos);
     const after = jsDocContent.substring(data.end);
-    jsDocContent = before + ` ${data.convertedText}` + after;
+    if (data.isDelete) {
+      jsDocContent = before + `${data.convertedText}` + after;
+    } else {
+      jsDocContent = before + ` ${data.convertedText}` + after;
+    }
   }
 }
 
@@ -374,8 +384,13 @@ function parseJSDocVisitEachChild2(context, node) {
   }
   function writeDataToFile(tag) {
     const typeExpr = tag.typeExpression;
-    const newTypeExpr = parseTypeExpression(typeExpr.type);
-    applJSDocTransformations(typeExpr.type, newTypeExpr, tagDataList, false);
+    if (ts.isJSDocNullableType(node) && typeExpr.type.type) {
+      const newTypeExpr = parseTypeExpression(typeExpr.type.type);
+      applJSDocTransformations(typeExpr.type.type, newTypeExpr, tagDataList, false);
+    } else {
+      const newTypeExpr = parseTypeExpression(typeExpr.type);
+      applJSDocTransformations(typeExpr.type, newTypeExpr, tagDataList, false);
+    }
   }
   function parseTypeExpression(node) {
     if (ts.isUnionTypeNode(node)) {