diff --git a/manager/client/grampus/grampus.go b/manager/client/grampus/grampus.go
index 3d78bfd140..92dbfe3689 100644
--- a/manager/client/grampus/grampus.go
+++ b/manager/client/grampus/grampus.go
@@ -33,6 +33,7 @@ const (
 
 	errorIllegalToken          = 1005
 	errorCannotStopCreatingJob = 5008
+	MAX_MATRICS_SIZE           = 1000
 )
 
 type GetTokenParams struct {
@@ -370,6 +371,11 @@ func GetGrampusMetrics(jobID string, startTime int64, endTime int64, nodeId ...i
 
 		size := int64(math.Ceil(float64(endTime-startTime)/float64(step))) + 1
 
+		if size > MAX_MATRICS_SIZE {
+			step = int64(math.Ceil(float64(size*step) / float64(MAX_MATRICS_SIZE)))
+			size = MAX_MATRICS_SIZE
+		}
+
 		url = url + "?startTime=" + strconv.FormatInt(startTime, 10) + "&step=" + strconv.FormatInt(step, 10) + "&size=" + strconv.FormatInt(size, 10)
 	}
 	res, err := client.R().