diff --git a/designer-realize/src/main/java/com/fr/design/report/PageSetupPane.java b/designer-realize/src/main/java/com/fr/design/report/PageSetupPane.java
index 668700a95e..3074bb009a 100644
--- a/designer-realize/src/main/java/com/fr/design/report/PageSetupPane.java
+++ b/designer-realize/src/main/java/com/fr/design/report/PageSetupPane.java
@@ -779,7 +779,7 @@ public class PageSetupPane extends BasicPane {
                     //使用科学计数法显示长度的时候，限制纵向显示长度为9位
                     if (h_str.contains(E)) {
                         String str1 = h_str.substring(h_str.indexOf(E));
-                        String str2 = h_str.substring(0, 9 - str1.length());
+                        String str2 = h_str.substring(0, Math.min(h_str.length(), 9) - str1.length());
                         h_str = str2 + str1;
                     } else if (h_str.indexOf(CoreConstants.DOT) > 0) {
                         h_str = h_str.substring(0, h_str.indexOf(CoreConstants.DOT) + 2);