diff --git a/store/driver.go b/store/driver.go
index 30f082e6..6c58da19 100644
--- a/store/driver.go
+++ b/store/driver.go
@@ -32,4 +32,8 @@ type Driver interface {
 	GetIdentityProvider(ctx context.Context, find *FindIdentityProvider) (*IdentityProvider, error)
 	UpdateIdentityProvider(ctx context.Context, update *UpdateIdentityProvider) (*IdentityProvider, error)
 	DeleteIdentityProvider(ctx context.Context, delete *DeleteIdentityProvider) error
+
+	UpsertTag(ctx context.Context, upsert *Tag) (*Tag, error)
+	ListTags(ctx context.Context, find *FindTag) ([]*Tag, error)
+	DeleteTag(ctx context.Context, delete *DeleteTag) error
 }
diff --git a/store/sqlite/tag.go b/store/sqlite/tag.go
new file mode 100644
index 00000000..73400e91
--- /dev/null
+++ b/store/sqlite/tag.go
@@ -0,0 +1,75 @@
+package sqlite
+
+import (
+	"context"
+	"strings"
+
+	"github.com/usememos/memos/store"
+)
+
+func (d *Driver) UpsertTag(ctx context.Context, upsert *store.Tag) (*store.Tag, error) {
+	stmt := `
+		INSERT INTO tag (
+			name, creator_id
+		)
+		VALUES (?, ?)
+		ON CONFLICT(name, creator_id) DO UPDATE 
+		SET
+			name = EXCLUDED.name
+	`
+	if _, err := d.db.ExecContext(ctx, stmt, upsert.Name, upsert.CreatorID); err != nil {
+		return nil, err
+	}
+
+	tag := upsert
+	return tag, nil
+}
+
+func (d *Driver) ListTags(ctx context.Context, find *store.FindTag) ([]*store.Tag, error) {
+	where, args := []string{"creator_id = ?"}, []any{find.CreatorID}
+	query := `
+		SELECT
+			name,
+			creator_id
+		FROM tag
+		WHERE ` + strings.Join(where, " AND ") + `
+		ORDER BY name ASC
+	`
+	rows, err := d.db.QueryContext(ctx, query, args...)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	list := []*store.Tag{}
+	for rows.Next() {
+		tag := &store.Tag{}
+		if err := rows.Scan(
+			&tag.Name,
+			&tag.CreatorID,
+		); err != nil {
+			return nil, err
+		}
+
+		list = append(list, tag)
+	}
+
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+
+	return list, nil
+}
+
+func (d *Driver) DeleteTag(ctx context.Context, delete *store.DeleteTag) error {
+	where, args := []string{"name = ?", "creator_id = ?"}, []any{delete.Name, delete.CreatorID}
+	stmt := `DELETE FROM tag WHERE ` + strings.Join(where, " AND ")
+	result, err := d.db.ExecContext(ctx, stmt, args...)
+	if err != nil {
+		return err
+	}
+	if _, err = result.RowsAffected(); err != nil {
+		return err
+	}
+	return nil
+}
diff --git a/store/tag.go b/store/tag.go
index 713a076e..afea0739 100644
--- a/store/tag.go
+++ b/store/tag.go
@@ -3,7 +3,6 @@ package store
 import (
 	"context"
 	"database/sql"
-	"strings"
 )
 
 type Tag struct {
@@ -21,70 +20,15 @@ type DeleteTag struct {
 }
 
 func (s *Store) UpsertTag(ctx context.Context, upsert *Tag) (*Tag, error) {
-	stmt := `
-		INSERT INTO tag (
-			name, creator_id
-		)
-		VALUES (?, ?)
-		ON CONFLICT(name, creator_id) DO UPDATE 
-		SET
-			name = EXCLUDED.name
-	`
-	if _, err := s.db.ExecContext(ctx, stmt, upsert.Name, upsert.CreatorID); err != nil {
-		return nil, err
-	}
-
-	tag := upsert
-	return tag, nil
+	return s.driver.UpsertTag(ctx, upsert)
 }
 
 func (s *Store) ListTags(ctx context.Context, find *FindTag) ([]*Tag, error) {
-	where, args := []string{"creator_id = ?"}, []any{find.CreatorID}
-	query := `
-		SELECT
-			name,
-			creator_id
-		FROM tag
-		WHERE ` + strings.Join(where, " AND ") + `
-		ORDER BY name ASC
-	`
-	rows, err := s.db.QueryContext(ctx, query, args...)
-	if err != nil {
-		return nil, err
-	}
-	defer rows.Close()
-
-	list := []*Tag{}
-	for rows.Next() {
-		tag := &Tag{}
-		if err := rows.Scan(
-			&tag.Name,
-			&tag.CreatorID,
-		); err != nil {
-			return nil, err
-		}
-
-		list = append(list, tag)
-	}
-
-	if err := rows.Err(); err != nil {
-		return nil, err
-	}
-
-	return list, nil
+	return s.driver.ListTags(ctx, find)
 }
 
 func (s *Store) DeleteTag(ctx context.Context, delete *DeleteTag) error {
-	where, args := []string{"name = ?", "creator_id = ?"}, []any{delete.Name, delete.CreatorID}
-	stmt := `DELETE FROM tag WHERE ` + strings.Join(where, " AND ")
-	result, err := s.db.ExecContext(ctx, stmt, args...)
-	if err != nil {
-		return err
-	}
-	if _, err = result.RowsAffected(); err != nil {
-		return err
-	}
-	return nil
+	return s.driver.DeleteTag(ctx, delete)
 }
 
 func vacuumTag(ctx context.Context, tx *sql.Tx) error {
diff --git a/test/store/tag_test.go b/test/store/tag_test.go
new file mode 100644
index 00000000..0b0624cd
--- /dev/null
+++ b/test/store/tag_test.go
@@ -0,0 +1,38 @@
+package teststore
+
+import (
+	"context"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+
+	"github.com/usememos/memos/store"
+)
+
+func TestTagStore(t *testing.T) {
+	ctx := context.Background()
+	ts := NewTestingStore(ctx, t)
+	user, err := createTestingHostUser(ctx, ts)
+	require.NoError(t, err)
+	tag, err := ts.UpsertTag(ctx, &store.Tag{
+		CreatorID: user.ID,
+		Name:      "test_tag",
+	})
+	require.NoError(t, err)
+	require.Equal(t, "test_tag", tag.Name)
+	require.Equal(t, user.ID, tag.CreatorID)
+	tags, err := ts.ListTags(ctx, &store.FindTag{
+		CreatorID: user.ID,
+	})
+	require.NoError(t, err)
+	require.Equal(t, 1, len(tags))
+	require.Equal(t, tag, tags[0])
+	err = ts.DeleteTag(ctx, &store.DeleteTag{
+		Name:      "test_tag",
+		CreatorID: user.ID,
+	})
+	require.NoError(t, err)
+	tags, err = ts.ListTags(ctx, &store.FindTag{})
+	require.NoError(t, err)
+	require.Equal(t, 0, len(tags))
+}