diff --git a/src/main/java/com/github/yulichang/query/MPJLambdaQueryWrapper.java b/src/main/java/com/github/yulichang/query/MPJLambdaQueryWrapper.java
index 733b652..c5fcf05 100644
--- a/src/main/java/com/github/yulichang/query/MPJLambdaQueryWrapper.java
+++ b/src/main/java/com/github/yulichang/query/MPJLambdaQueryWrapper.java
@@ -239,6 +239,9 @@ public class MPJLambdaQueryWrapper<T> extends AbstractLambdaWrapper<T, MPJLambda
     public void clear() {
         super.clear();
         sqlSelect.toNull();
+        from.toNull();
+        selectColumns.clear();
+        ignoreColumns.clear();
     }
 
     @Override
diff --git a/src/main/java/com/github/yulichang/query/MPJQueryWrapper.java b/src/main/java/com/github/yulichang/query/MPJQueryWrapper.java
index 834d090..40f5f40 100644
--- a/src/main/java/com/github/yulichang/query/MPJQueryWrapper.java
+++ b/src/main/java/com/github/yulichang/query/MPJQueryWrapper.java
@@ -194,6 +194,9 @@ public class MPJQueryWrapper<T> extends AbstractWrapper<T, String, MPJQueryWrapp
     public void clear() {
         super.clear();
         sqlSelect.toNull();
+        from.toNull();
+        selectColumns.clear();
+        ignoreColumns.clear();
     }
 
     @Override