diff --git a/designer-realize/src/main/java/com/fr/design/report/UnitFieldPane.java b/designer-realize/src/main/java/com/fr/design/report/UnitFieldPane.java
index 4a6984d0f..6da8957b2 100644
--- a/designer-realize/src/main/java/com/fr/design/report/UnitFieldPane.java
+++ b/designer-realize/src/main/java/com/fr/design/report/UnitFieldPane.java
@@ -67,7 +67,7 @@ public class UnitFieldPane extends JPanel {
 
         this.unitType = unitType;
 
-        valueSpinner = new UIBasicSpinner(new SpinnerNumberModel(0.0, 0.0, Double.MAX_VALUE, 1.0));
+        valueSpinner = new UIBasicSpinner(new SpinnerNumberModel(0.0, Integer.MIN_VALUE, Double.MAX_VALUE, 1.0));
         textField = ((JSpinner.DefaultEditor) valueSpinner.getEditor()).getTextField();
         textField.setColumns(OperatingSystem.isWindows() ? TEXT_FIELD_COLUMNS_WINDOWS : TEXT_FIELD_COLUMNS);
         InputEventBaseOnOS.addBasicEditInputMap(textField);