diff --git a/seatunnel-api/src/main/java/org/apache/seatunnel/api/configuration/ReadonlyConfig.java b/seatunnel-api/src/main/java/org/apache/seatunnel/api/configuration/ReadonlyConfig.java
index 16a6ad2a057..81d64500dc2 100644
--- a/seatunnel-api/src/main/java/org/apache/seatunnel/api/configuration/ReadonlyConfig.java
+++ b/seatunnel-api/src/main/java/org/apache/seatunnel/api/configuration/ReadonlyConfig.java
@@ -69,8 +69,10 @@ public <T> T get(Option<T> option) {
     /**
      * Transform to Config todo: This method should be removed after we remove Config
      *
+     * @deprecated Please use ReadonlyConfig directly
      * @return Config
      */
+    @Deprecated
     public Config toConfig() {
         return ConfigFactory.parseMap(confData);
     }