diff --git a/nflg_project_dev/nflg-bom-new/src/main/java/com/nflg/product/bomnew/util/VersionUtil.java b/nflg_project_dev/nflg-bom-new/src/main/java/com/nflg/product/bomnew/util/VersionUtil.java
index 2426a153..7ecdb7ec 100644
--- a/nflg_project_dev/nflg-bom-new/src/main/java/com/nflg/product/bomnew/util/VersionUtil.java
+++ b/nflg_project_dev/nflg-bom-new/src/main/java/com/nflg/product/bomnew/util/VersionUtil.java
@@ -122,4 +122,42 @@ public class VersionUtil {
         return Integer.compare(split1.length, split2.length);
     }
 
+
+    /**
+     * 获取PBOM 升级版本号（PBOM升级版本号规则）
+     * @param version
+     * @return
+     */
+    public static String getPBomUpgradNextVersion(String version) {
+        if (version == null || version.isEmpty()) {
+            throw new IllegalArgumentException("输入版本号不能为空");
+        }
+        char lastChar = version.charAt(version.length() - 1);
+        boolean isLetter = Character.isLetter(lastChar);
+        if (!isLetter) {
+            return version + "a";
+        } else {
+            int lastCharIndex = version.length() - 1;
+            char newLastChar = (char) (lastChar + 1);
+
+            if (newLastChar > 'z') {
+                // Handle case where the last character is 'z'
+                StringBuilder sb = new StringBuilder(version.substring(0, lastCharIndex));
+                sb.append("a").append('a');
+                return sb.toString();
+            } else {
+                return version.substring(0, lastCharIndex) + newLastChar;
+            }
+        }
+    }
+
+    private static String getNextLetter(char currentLetter) {
+        char nextLetter = (char) (currentLetter + 1);
+        if (nextLetter > 'z') {
+            return "a" + getNextLetter('a');
+        } else {
+            return "" + nextLetter;
+        }
+    }
+
 }