diff --git a/flink-doris-connector/src/main/java/org/apache/doris/flink/source/DorisSourceBuilder.java b/flink-doris-connector/src/main/java/org/apache/doris/flink/source/DorisSourceBuilder.java
index 8d96c08a0..94febb8c8 100644
--- a/flink-doris-connector/src/main/java/org/apache/doris/flink/source/DorisSourceBuilder.java
+++ b/flink-doris-connector/src/main/java/org/apache/doris/flink/source/DorisSourceBuilder.java
@@ -63,6 +63,9 @@ public DorisSourceBuilder<OUT> setDeserializer(DorisDeserializationSchema<OUT> d
     }
 
     public DorisSource<OUT> build() {
+        if(readOptions == null){
+            readOptions = DorisReadOptions.builder().build();
+        }
         return new DorisSource<>(options, readOptions, boundedness, deserializer);
     }
 }