diff --git a/fe/fe-core/src/main/java/org/apache/doris/qe/SessionVariable.java b/fe/fe-core/src/main/java/org/apache/doris/qe/SessionVariable.java
index c2062762e6c7e8e..c68536a4c001595 100644
--- a/fe/fe-core/src/main/java/org/apache/doris/qe/SessionVariable.java
+++ b/fe/fe-core/src/main/java/org/apache/doris/qe/SessionVariable.java
@@ -752,7 +752,7 @@ public class SessionVariable implements Serializable, Writable {
     private boolean enableJoinReorderBasedCost = false;
 
     @VariableMgr.VarAttr(name = ENABLE_FOLD_CONSTANT_BY_BE, fuzzy = true)
-    private boolean enableFoldConstantByBe = false;
+    private boolean enableFoldConstantByBe = true;
 
     @VariableMgr.VarAttr(name = RUNTIME_FILTER_MODE, needForward = true)
     private String runtimeFilterMode = "GLOBAL";