diff --git a/eladmin-system/src/main/java/me/zhengjie/modules/constant/DefaultConstant.java b/eladmin-system/src/main/java/me/zhengjie/modules/constant/DefaultConstant.java
index ee2259d..892be09 100644
--- a/eladmin-system/src/main/java/me/zhengjie/modules/constant/DefaultConstant.java
+++ b/eladmin-system/src/main/java/me/zhengjie/modules/constant/DefaultConstant.java
@@ -48,6 +48,13 @@ public class DefaultConstant {
      */
     public static final int TWELVE_NUMBER = 12;
 
+    /**
+     * 13
+     */
+    public static final int THIRTEEN_NUMBER = 13;
+
+
+
 
     /**
      * 999999L
diff --git a/eladmin-system/src/main/java/me/zhengjie/modules/uploadnew/util/ToolExcelUtils.java b/eladmin-system/src/main/java/me/zhengjie/modules/uploadnew/util/ToolExcelUtils.java
index 7c2cb71..0094d42 100644
--- a/eladmin-system/src/main/java/me/zhengjie/modules/uploadnew/util/ToolExcelUtils.java
+++ b/eladmin-system/src/main/java/me/zhengjie/modules/uploadnew/util/ToolExcelUtils.java
@@ -26,7 +26,7 @@ public class ToolExcelUtils {
         if (CollectionUtils.isNotEmpty(reader.read())) {
             for (List<Object> objects : reader.read()) {
                 String phone = objects.toString();
-                if (phone.startsWith(StrUtil.BRACKET_START) && phone.endsWith(StrUtil.BRACKET_END)) {
+                if (phone.length() == DefaultConstant.THIRTEEN_NUMBER) {
                     list.add(phone.substring(DefaultConstant.ONE_NUMBER, DefaultConstant.TWELVE_NUMBER));
                 }
             }