diff --git a/pkg/util/indexparamcheck/constraints.go b/pkg/util/indexparamcheck/constraints.go
index 2228105b92..55ea516666 100644
--- a/pkg/util/indexparamcheck/constraints.go
+++ b/pkg/util/indexparamcheck/constraints.go
@@ -64,7 +64,7 @@ var (
 )
 
 const (
-	FloatVectorDefaultMetricType       = metric.IP
+	FloatVectorDefaultMetricType       = metric.COSINE
 	SparseFloatVectorDefaultMetricType = metric.IP
-	BinaryVectorDefaultMetricType      = metric.JACCARD
+	BinaryVectorDefaultMetricType      = metric.HAMMING
 )
diff --git a/pkg/util/indexparamcheck/hnsw_checker_test.go b/pkg/util/indexparamcheck/hnsw_checker_test.go
index fd2499cafc..f68c3794f8 100644
--- a/pkg/util/indexparamcheck/hnsw_checker_test.go
+++ b/pkg/util/indexparamcheck/hnsw_checker_test.go
@@ -180,15 +180,15 @@ func Test_hnswChecker_SetDefaultMetricType(t *testing.T) {
 	}{
 		{
 			dType:      schemapb.DataType_FloatVector,
-			metricType: metric.IP,
+			metricType: metric.COSINE,
 		},
 		{
 			dType:      schemapb.DataType_Float16Vector,
-			metricType: metric.IP,
+			metricType: metric.COSINE,
 		},
 		{
 			dType:      schemapb.DataType_BFloat16Vector,
-			metricType: metric.IP,
+			metricType: metric.COSINE,
 		},
 		{
 			dType:      schemapb.DataType_SparseFloatVector,
@@ -196,7 +196,7 @@ func Test_hnswChecker_SetDefaultMetricType(t *testing.T) {
 		},
 		{
 			dType:      schemapb.DataType_BinaryVector,
-			metricType: metric.JACCARD,
+			metricType: metric.HAMMING,
 		},
 	}
 
diff --git a/pkg/util/paramtable/autoindex_param.go b/pkg/util/paramtable/autoindex_param.go
index 36ef52e2ae..0607e6d30b 100644
--- a/pkg/util/paramtable/autoindex_param.go
+++ b/pkg/util/paramtable/autoindex_param.go
@@ -70,7 +70,7 @@ func (p *autoIndexConfig) init(base *BaseTable) {
 	p.IndexParams = ParamItem{
 		Key:          "autoIndex.params.build",
 		Version:      "2.2.0",
-		DefaultValue: `{"M": 18,"efConstruction": 240,"index_type": "HNSW", "metric_type": "IP"}`,
+		DefaultValue: `{"M": 18,"efConstruction": 240,"index_type": "HNSW", "metric_type": "COSINE"}`,
 		Export:       true,
 	}
 	p.IndexParams.Init(base.mgr)
@@ -86,7 +86,7 @@ func (p *autoIndexConfig) init(base *BaseTable) {
 	p.BinaryIndexParams = ParamItem{
 		Key:          "autoIndex.params.binary.build",
 		Version:      "2.4.5",
-		DefaultValue: `{"nlist": 1024, "index_type": "BIN_IVF_FLAT", "metric_type": "JACCARD"}`,
+		DefaultValue: `{"nlist": 1024, "index_type": "BIN_IVF_FLAT", "metric_type": "HAMMING"}`,
 		Export:       true,
 	}
 	p.BinaryIndexParams.Init(base.mgr)
diff --git a/tests/python_client/testcases/test_index.py b/tests/python_client/testcases/test_index.py
index 6e9d914625..f3e0e4a2b3 100644
--- a/tests/python_client/testcases/test_index.py
+++ b/tests/python_client/testcases/test_index.py
@@ -22,7 +22,8 @@ prefix = "index"
 default_schema = cf.gen_default_collection_schema()
 default_field_name = ct.default_float_vec_field_name
 default_index_params = ct.default_index
-default_autoindex_params = {"index_type": "AUTOINDEX", "metric_type": "IP"}
+default_autoindex_params = {"index_type": "AUTOINDEX", "metric_type": "COSINE"}
+default_sparse_autoindex_params = {"index_type": "AUTOINDEX", "metric_type": "IP"}
 
 # copied from pymilvus
 uid = "test_index"
@@ -2125,7 +2126,7 @@ class TestAutoIndex(TestcaseBase):
         """
         collection_w = self.init_collection_general(prefix, is_binary=True, is_index=False)[0]
         collection_w.create_index(binary_field_name, {})
-        assert collection_w.index()[0].params == {'index_type': 'AUTOINDEX', 'metric_type': 'JACCARD'}
+        assert collection_w.index()[0].params == {'index_type': 'AUTOINDEX', 'metric_type': 'HAMMING'}
 
 
 @pytest.mark.tags(CaseLabel.GPU)