diff --git a/configs/milvus.yaml b/configs/milvus.yaml
index 84ee4a2257..7dd7f890c8 100644
--- a/configs/milvus.yaml
+++ b/configs/milvus.yaml
@@ -190,7 +190,7 @@ proxy:
 queryCoord:
   autoHandoff: true # Enable auto handoff
   autoBalance: true # Enable auto balance
-  balancer: RowCountBasedBalancer # Balancer to use
+  balancer: ScoreBasedBalancer # Balancer to use
   globalRowCountFactor: 0.1 # expert parameters, only used by scoreBasedBalancer
   scoreUnbalanceTolerationFactor: 0.05 # expert parameters, only used by scoreBasedBalancer
   reverseUnBalanceTolerationFactor: 1.3 #expert parameters, only used by scoreBasedBalancer
diff --git a/pkg/util/paramtable/component_param.go b/pkg/util/paramtable/component_param.go
index deaaaaa524..93dd489059 100644
--- a/pkg/util/paramtable/component_param.go
+++ b/pkg/util/paramtable/component_param.go
@@ -1192,8 +1192,8 @@ func (p *queryCoordConfig) init(base *BaseTable) {
 	p.Balancer = ParamItem{
 		Key:          "queryCoord.balancer",
 		Version:      "2.0.0",
-		DefaultValue: "RowCountBasedBalancer",
-		PanicIfEmpty: true,
+		DefaultValue: "ScoreBasedBalancer",
+		PanicIfEmpty: false,
 		Doc:          "auto balancer used for segments on queryNodes",
 		Export:       true,
 	}