diff --git a/op_array/util.go b/op_array/util.go
index 29854f6..9efa97e 100644
--- a/op_array/util.go
+++ b/op_array/util.go
@@ -17,6 +17,16 @@ func ToMap[Key comparable, Value any](dataList []Value, keyFormat func(item Valu
 	return res
 }
 
+// ToCustomMap 数组转map
+func ToCustomMap[Key comparable, Value any, CustomValue any](dataList []Value, keyFormat func(item Value) Key, formatCustomValue func(item Value) CustomValue) map[Key]CustomValue {
+	res := make(map[Key]CustomValue)
+	for _, item := range dataList {
+		key := keyFormat(item)
+		res[key] = formatCustomValue(item)
+	}
+	return res
+}
+
 // ExtractField 提取数组指定字段, 并构建成一个新的数组
 func ExtractField[FieldValue any, Value any](dataList []Value, fieldValue func(item Value) FieldValue) []FieldValue {
 	res := make([]FieldValue, 0)