diff --git a/designer-realize/src/main/java/com/fr/design/mainframe/alphafine/component/AlphaFineFrame.java b/designer-realize/src/main/java/com/fr/design/mainframe/alphafine/component/AlphaFineFrame.java
index 86edc6caa2..218b244baa 100644
--- a/designer-realize/src/main/java/com/fr/design/mainframe/alphafine/component/AlphaFineFrame.java
+++ b/designer-realize/src/main/java/com/fr/design/mainframe/alphafine/component/AlphaFineFrame.java
@@ -593,6 +593,7 @@ public class AlphaFineFrame extends JFrame {
                 SearchTooltipPopup.getInstance().hide();
                 clearLabel.setVisible(false);
                 switchType(selectedType);
+                beforeSearchStr = StringUtils.EMPTY;
             } else if (searchTextField.hasFocus()) {
                 clearLabel.setVisible(true);
                 SearchTooltipPopup.getInstance().show(searchTextFieldWrapperPane);