diff --git a/src/dao/fin_withdraw_apply_dao.go b/src/dao/fin_withdraw_apply_dao.go
index fa643e5..24b286f 100644
--- a/src/dao/fin_withdraw_apply_dao.go
+++ b/src/dao/fin_withdraw_apply_dao.go
@@ -8,4 +8,5 @@ import (
 type FinWithdrawApplyDao interface {
 	FinWithdrawApplyGetBySession(session *xorm.Session, startAt, endAt string, params map[string]interface{}) (*[]model.FinWithdrawApply, error)
 	FinWithdrawApplyInsertOneBySession(session *xorm.Session, m *model.FinWithdrawApply) (int64, error)
+	FinWithdrawApplyAmountGetByParams(params map[string]interface{}) (float64, error)
 }
diff --git a/src/implement/fin_withdraw_apply_implement.go b/src/implement/fin_withdraw_apply_implement.go
index b6830d9..6e1b17a 100644
--- a/src/implement/fin_withdraw_apply_implement.go
+++ b/src/implement/fin_withdraw_apply_implement.go
@@ -44,3 +44,13 @@ func (f FinWithdrawApplyDb) FinWithdrawApplyGetBySession(session *xorm.Session,
 
 	return m, nil
 }
+
+func (f FinWithdrawApplyDb) FinWithdrawApplyAmountGetByParams(params map[string]interface{}) (float64, error) {
+	var m model.FinWithdrawApply
+	var query = fmt.Sprintf("%s =?", params["key"])
+	total, err := f.Db.Where(query, params["value"]).Sum(m, "amount")
+	if err != nil {
+		return 0, err
+	}
+	return total, nil
+}