diff --git a/internal/proxy/task_index.go b/internal/proxy/task_index.go
index 9a510f3845..bec40f6239 100644
--- a/internal/proxy/task_index.go
+++ b/internal/proxy/task_index.go
@@ -63,6 +63,7 @@ type createIndexTask struct {
 
 	isAutoIndex    bool
 	newIndexParams []*commonpb.KeyValuePair
+	newTypeParams  []*commonpb.KeyValuePair
 
 	collectionID UniqueID
 	fieldSchema  *schemapb.FieldSchema
@@ -167,20 +168,27 @@ func (cit *createIndexTask) parseIndexParams() error {
 		}
 	}
 	typeParams := cit.fieldSchema.GetTypeParams()
-	typeParamsMap := make(map[string]interface{})
+	typeParamsMap := make(map[string]string)
 	for _, pair := range typeParams {
-		typeParamsMap[pair.Key] = struct{}{}
+		typeParamsMap[pair.Key] = pair.Value
 	}
 
 	for k, v := range indexParamsMap {
 		//Currently, it is required that type_params and index_params do not have same keys.
-		_, ok := typeParamsMap[k]
-		if ok {
+		if k == DimKey || k == maxVarCharLengthKey {
+			delete(indexParamsMap, k)
 			continue
 		}
 		cit.newIndexParams = append(cit.newIndexParams, &commonpb.KeyValuePair{Key: k, Value: v})
 	}
 
+	for k, v := range typeParamsMap {
+		if _, ok := indexParamsMap[k]; ok {
+			continue
+		}
+		cit.newTypeParams = append(cit.newTypeParams, &commonpb.KeyValuePair{Key: k, Value: v})
+	}
+
 	return nil
 }
 
diff --git a/internal/proxy/task_index_test.go b/internal/proxy/task_index_test.go
index 677130b0b6..491013ca3e 100644
--- a/internal/proxy/task_index_test.go
+++ b/internal/proxy/task_index_test.go
@@ -274,3 +274,90 @@ func TestCreateIndexTask_PreExecute(t *testing.T) {
 		assert.NoError(t, err)
 	})
 }
+
+func Test_parseIndexParams(t *testing.T) {
+	cit := &createIndexTask{
+		Condition: nil,
+		req: &milvuspb.CreateIndexRequest{
+			Base:           nil,
+			DbName:         "",
+			CollectionName: "",
+			FieldName:      "",
+			ExtraParams: []*commonpb.KeyValuePair{
+				{
+					Key:   "index_type",
+					Value: "HNSW",
+				},
+				{
+					Key:   MetricTypeKey,
+					Value: "IP",
+				},
+				{
+					Key:   "params",
+					Value: "{\"M\": 48, \"efConstruction\": 64}",
+				},
+				{
+					Key:   DimKey,
+					Value: "128",
+				},
+			},
+			IndexName: "",
+		},
+		ctx:            nil,
+		rootCoord:      nil,
+		queryCoord:     nil,
+		result:         nil,
+		isAutoIndex:    false,
+		newIndexParams: nil,
+		newTypeParams:  nil,
+		collectionID:   0,
+		fieldSchema: &schemapb.FieldSchema{
+			FieldID:      101,
+			Name:         "FieldID",
+			IsPrimaryKey: false,
+			Description:  "field no.1",
+			DataType:     schemapb.DataType_FloatVector,
+			TypeParams: []*commonpb.KeyValuePair{
+				{
+					Key:   DimKey,
+					Value: "128",
+				},
+				{
+					Key:   MetricTypeKey,
+					Value: "L2",
+				},
+			}},
+	}
+
+	t.Run("parse index params", func(t *testing.T) {
+		err := cit.parseIndexParams()
+		assert.NoError(t, err)
+
+		assert.ElementsMatch(t,
+			[]*commonpb.KeyValuePair{
+				{
+					Key:   "index_type",
+					Value: "HNSW",
+				},
+				{
+					Key:   MetricTypeKey,
+					Value: "IP",
+				},
+				{
+					Key:   "M",
+					Value: "48",
+				},
+				{
+					Key:   "efConstruction",
+					Value: "64",
+				},
+			}, cit.newIndexParams)
+		assert.ElementsMatch(t,
+			[]*commonpb.KeyValuePair{
+				{
+					Key:   DimKey,
+					Value: "128",
+				},
+			}, cit.newTypeParams)
+	})
+}