diff --git a/designer-realize/src/main/java/com/fr/grid/GridUI.java b/designer-realize/src/main/java/com/fr/grid/GridUI.java
index 36b81ea68..3ca89fc01 100644
--- a/designer-realize/src/main/java/com/fr/grid/GridUI.java
+++ b/designer-realize/src/main/java/com/fr/grid/GridUI.java
@@ -342,7 +342,7 @@ public class GridUI extends ComponentUI {
                 }
 
                 // paint paper margin line.
-                if (showPaginateLine && (float)paperSumSize > (float) paperPaintSize) {
+                if (showPaginateLine && paperSumSize - paperPaintSize > 1.0E-7D) {
                     paginateLineList.add(getPaginateLine2D((int) sumSize));
                     paperSumSize = tmpSize;
                 }