diff --git a/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/function/ToBase64Function.java b/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/function/ToBase64Function.java
index 8cecec6b3d3..a82f36d9c26 100644
--- a/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/function/ToBase64Function.java
+++ b/inlong-sdk/transform-sdk/src/main/java/org/apache/inlong/sdk/transform/process/function/ToBase64Function.java
@@ -35,20 +35,10 @@ public class ToBase64Function implements ValueParser {
 
     private final ValueParser stringParser;
 
-    /**
-     * Constructor
-     * @param expr
-     */
     public ToBase64Function(Function expr) {
         stringParser = OperatorTools.buildParser(expr.getParameters().getExpressions().get(0));
     }
 
-    /**
-     * parse
-     * @param sourceData
-     * @param rowIndex
-     * @return
-     */
     @Override
     public Object parse(SourceData sourceData, int rowIndex, Context context) {
         Object stringObj = stringParser.parse(sourceData, rowIndex, context);