diff --git a/src/modules/monapi/config/yaml.go b/src/modules/monapi/config/yaml.go
index 55d5b061..dc88a691 100644
--- a/src/modules/monapi/config/yaml.go
+++ b/src/modules/monapi/config/yaml.go
@@ -25,6 +25,7 @@ type ConfYaml struct {
 	Merge         mergeSection        `yaml:"merge"`
 	Notify        map[string][]string `yaml:"notify"`
 	Link          linkSection         `yaml:"link"`
+	IndexMod      string              `yaml:"indexMod"`
 }
 
 type mergeSection struct {
@@ -136,6 +137,7 @@ func Parse(ymlfile string) error {
 	})
 
 	viper.SetDefault("alarmEnabled", "true")
+	viper.SetDefault("indexMod", "index")
 
 	viper.SetDefault("habits.identity", "ip")
 
diff --git a/src/modules/monapi/http/router_index.go b/src/modules/monapi/http/router_index.go
index c473b251..8b9569b0 100644
--- a/src/modules/monapi/http/router_index.go
+++ b/src/modules/monapi/http/router_index.go
@@ -9,6 +9,7 @@ import (
 	"github.com/didi/nightingale/src/common/dataobj"
 	"github.com/didi/nightingale/src/common/report"
 	"github.com/didi/nightingale/src/models"
+	"github.com/didi/nightingale/src/modules/monapi/config"
 
 	"github.com/gin-gonic/gin"
 	"github.com/toolkits/pkg/errors"
@@ -128,7 +129,7 @@ func Tagkv(request NidMetricRecv) ([]IndexTagkvResp, error) {
 
 func GetIndexes() []string {
 	var indexInstances []string
-	instances, err := report.GetAlive("index", "rdb")
+	instances, err := report.GetAlive(config.Get().IndexMod, "rdb")
 	if err != nil {
 		return indexInstances
 	}