diff --git a/internal/endpoint/endpoint.go b/internal/endpoint/endpoint.go
index e4c9ef969..160b694f7 100644
--- a/internal/endpoint/endpoint.go
+++ b/internal/endpoint/endpoint.go
@@ -2,7 +2,6 @@ package endpoint
 
 import (
 	"net/url"
-	"strconv"
 )
 
 // NewEndpoint new an Endpoint URL.
@@ -18,10 +17,6 @@ func ParseEndpoint(endpoints []string, scheme string) (string, error) {
 			return "", err
 		}
 
-		// TODO: Compatibility processing
-		// Function is to convert grpc:/127.0.0.1/?isSecure=true into grpcs:/127.0.0.1/
-		// It will be deleted in about a month
-		u = legacyURLToNew(u)
 		if u.Scheme == scheme {
 			return u.Host, nil
 		}
@@ -29,27 +24,6 @@ func ParseEndpoint(endpoints []string, scheme string) (string, error) {
 	return "", nil
 }
 
-func legacyURLToNew(u *url.URL) *url.URL {
-	if u.Scheme == "https" || u.Scheme == "grpcs" {
-		return u
-	}
-	if IsSecure(u) {
-		return &url.URL{Scheme: u.Scheme + "s", Host: u.Host}
-	}
-	return u
-}
-
-// IsSecure parses isSecure for Endpoint URL.
-// Note: It will be deleted after some time,
-// unified use grpcs://127.0.0.1:8080 instead of grpc://127.0.0.1:8080?isSecure=true
-func IsSecure(u *url.URL) bool {
-	ok, err := strconv.ParseBool(u.Query().Get("isSecure"))
-	if err != nil {
-		return false
-	}
-	return ok
-}
-
 // Scheme is the scheme of endpoint url.
 // examples: scheme="http",isSecure=true get "https"
 func Scheme(scheme string, isSecure bool) string {
diff --git a/internal/endpoint/endpoint_test.go b/internal/endpoint/endpoint_test.go
index e8870c800..c02878fd5 100644
--- a/internal/endpoint/endpoint_test.go
+++ b/internal/endpoint/endpoint_test.go
@@ -6,41 +6,6 @@ import (
 	"testing"
 )
 
-func TestEndPoint(t *testing.T) {
-	type args struct {
-		url *url.URL
-	}
-	tests := []struct {
-		name string
-		args args
-		want bool
-	}{
-		// TODO: Add test cases.
-		{
-			name: "grpc://127.0.0.1?isSecure=false",
-			args: args{&url.URL{Scheme: "grpc", Host: "127.0.0.1", RawQuery: "isSecure=false"}},
-			want: false,
-		},
-		{
-			name: "grpc://127.0.0.1?isSecure=true",
-			args: args{&url.URL{Scheme: "grpc", Host: "127.0.0.1", RawQuery: "isSecure=true"}},
-			want: true,
-		},
-		{
-			name: "grpc://127.0.0.1",
-			args: args{&url.URL{Scheme: "grpc", Host: "127.0.0.1"}},
-			want: false,
-		},
-	}
-	for _, tt := range tests {
-		t.Run(tt.name, func(t *testing.T) {
-			if got := IsSecure(tt.args.url); !reflect.DeepEqual(got, tt.want) {
-				t.Errorf("GetQuery() = %v, want %v", got, tt.want)
-			}
-		})
-	}
-}
-
 func TestNewEndpoint(t *testing.T) {
 	type args struct {
 		scheme string
@@ -111,20 +76,6 @@ func TestParseEndpoint(t *testing.T) {
 			want:    "",
 			wantErr: false,
 		},
-
-		// Legacy
-		{
-			name:    "google",
-			args:    args{endpoints: []string{"grpc://www.google.com/?isSecure=true"}, scheme: "grpcs"},
-			want:    "www.google.com",
-			wantErr: false,
-		},
-		{
-			name:    "baidu",
-			args:    args{endpoints: []string{"http://www.baidu.com/?isSecure=true"}, scheme: "https"},
-			want:    "www.baidu.com",
-			wantErr: false,
-		},
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
@@ -140,56 +91,6 @@ func TestParseEndpoint(t *testing.T) {
 	}
 }
 
-func TestIsSecure(t *testing.T) {
-	tests := []struct {
-		url  *url.URL
-		want bool
-	}{
-		{
-			url:  &url.URL{Scheme: "http", Host: "127.0.0.1"},
-			want: false,
-		},
-		{
-			url:  &url.URL{Scheme: "http", Host: "127.0.0.1", RawQuery: "isSecure=false"},
-			want: false,
-		},
-		{
-			url:  &url.URL{Scheme: "grpc", Host: "127.0.0.1", RawQuery: "isSecure=true"},
-			want: true,
-		},
-	}
-	for _, tt := range tests {
-		if got := IsSecure(tt.url); got != tt.want {
-			t.Errorf("IsSecure() = %v, want %v", got, tt.want)
-		}
-	}
-}
-
-func TestLegacyURLToNew(t *testing.T) {
-	tests := []struct {
-		url  *url.URL
-		want *url.URL
-	}{
-		{
-			url:  &url.URL{Scheme: "http", Host: "www.google.com", RawQuery: "isSecure=true"},
-			want: &url.URL{Scheme: "https", Host: "www.google.com"},
-		},
-		{
-			url:  &url.URL{Scheme: "https", Host: "www.google.com", RawQuery: "isSecure=true"},
-			want: &url.URL{Scheme: "https", Host: "www.google.com", RawQuery: "isSecure=true"},
-		},
-		{
-			url:  &url.URL{Scheme: "http", Host: "go-kratos.dev", RawQuery: "isSecure=false"},
-			want: &url.URL{Scheme: "http", Host: "go-kratos.dev", RawQuery: "isSecure=false"},
-		},
-	}
-	for _, tt := range tests {
-		if got := legacyURLToNew(tt.url); !reflect.DeepEqual(got, tt.want) {
-			t.Errorf("legacyURLToNew() = %v, want %v", got, tt.want)
-		}
-	}
-}
-
 func TestSchema(t *testing.T) {
 	tests := []struct {
 		schema string