diff --git a/src/com/engine/salary/util/SalaryEntityUtil.java b/src/com/engine/salary/util/SalaryEntityUtil.java
index 0b2a6d474..03cc7c8df 100644
--- a/src/com/engine/salary/util/SalaryEntityUtil.java
+++ b/src/com/engine/salary/util/SalaryEntityUtil.java
@@ -135,6 +135,15 @@ public class SalaryEntityUtil {
                 .collect(Collectors.toMap(keyMapper, valueMapper, (a, b) -> a));
     }
 
+    public static <T, K, V> Map<K, V> convert2LinkedMap(Collection<T> objs, Function<T, K> keyMapper, Function<T, V> valueMapper) {
+        if (CollectionUtils.isEmpty(objs)) {
+            return Maps.newHashMap();
+        }
+        return objs.stream()
+                .filter(e -> valueMapper.apply(e) != null && keyMapper.apply(e) != null)
+                .collect(Collectors.toMap(keyMapper, valueMapper, (a, b) -> a, LinkedHashMap::new));
+    }
+
     public static <R, T> Map<R, List<T>> group2Map(Collection<T> objs, Function<T, R> function) {
         if (CollectionUtils.isEmpty(objs)) {
             return Maps.newHashMap();