diff --git a/store/tikv/split_region.go b/store/tikv/split_region.go
index 045b4ccb9560d..3cbceb80ed661 100644
--- a/store/tikv/split_region.go
+++ b/store/tikv/split_region.go
@@ -35,7 +35,7 @@ import (
 	"go.uber.org/zap"
 )
 
-const splitBatchRegionLimit = 16
+const splitBatchRegionLimit = 2048
 
 func equalRegionStartKey(key, regionStartKey []byte) bool {
 	return bytes.Equal(key, regionStartKey)