diff --git a/domain/model/group_m/group_im.go b/domain/model/group_m/group_im.go
index 6177cf324fbc13b6fef726256056cdc11040c931..8b9ecdc86d2f179795a99e23576950e8a36119ab 100644
--- a/domain/model/group_m/group_im.go
+++ b/domain/model/group_m/group_im.go
@@ -36,6 +36,12 @@ func GetRandomImProvider(model *domain.Model) group_e.GroupProvider {
 		model.Log.Errorf("GetRandomImProvider err:%v", err)
 		return res
 	}
+	conf := GetRandomGroupImConf(confList)
+	return conf.Provider
+}
+
+func GetRandomGroupImConf(confList []*GroupIm) *GroupIm {
+	var res *GroupIm
 	var max int
 	for i, v := range confList {
 		if v.Prob > 0 {
@@ -48,7 +54,7 @@ func GetRandomImProvider(model *domain.Model) group_e.GroupProvider {
 	randNum := rand.Intn(max)
 	for _, v := range confList {
 		if v.StartIdx <= randNum && randNum < v.EndIdx {
-			res = v.Provider
+			res = v
 		}
 	}
 	return res
diff --git a/test/group_power_test.go b/test/group_power_test.go
index 54c80d0df956ebe0180fa5d4daf5f59a4f2d0cbb..70b19f2cabc0c47fe06539c8b743a7fcf967bf75 100644
--- a/test/group_power_test.go
+++ b/test/group_power_test.go
@@ -49,3 +49,23 @@ func TestDoCalcGroupPowerMonthRankActbufa(t *testing.T) {
 	beginDate, endDate := _now.BeginningOfMonth().Format("2006-01-02"), _now.EndOfMonth().Format("2006-01-02")
 	_ = group_power_s.BufaDoCalcGroupPowerMonthRankAct(domain.CreateModelNil(), calcMonth, beginDate, endDate, starDate)
 }
+
+func TestGetRandomImProvider(t *testing.T) {
+	var times0, times1 int
+	model := domain.CreateModelNil()
+	confList, err := group_m.GetGroupImConf(model)
+	if err != nil {
+		model.Log.Errorf("GetRandomImProvider err:%v", err)
+		return
+	}
+	for i := 0; i < 1000000; i++ {
+		conf := group_m.GetRandomGroupImConf(confList)
+		if conf.Provider == 0 {
+			times0 += 1
+		} else if conf.Provider == 1 {
+			times1 += 1
+		}
+	}
+	fmt.Printf("true--------------times0：%v\n", times0)
+	fmt.Printf("true--------------times1：%v\n", times1)
+}