diff --git a/internal/store/channel.go b/internal/store/channel.go
new file mode 100644
index 0000000..42808d5
--- /dev/null
+++ b/internal/store/channel.go
@@ -0,0 +1,90 @@
+package store
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+
+	"aiaa-notification-service/internal/model"
+)
+
+func (s *Store) CreateChannel(ctx context.Context, ch *model.Channel) error {
+	configJSON, err := json.Marshal(ch.Config)
+	if err != nil {
+		return fmt.Errorf("marshal channel config: %w", err)
+	}
+	query := `INSERT INTO channel (name, type, config, status) VALUES (?, ?, ?, ?)`
+	result, err := s.DB.ExecContext(ctx, query, ch.Name, ch.Type, configJSON, ch.Status)
+	if err != nil {
+		return fmt.Errorf("create channel: %w", err)
+	}
+	id, _ := result.LastInsertId()
+	ch.ID = int(id)
+	return nil
+}
+
+func (s *Store) GetChannel(ctx context.Context, id int) (*model.Channel, error) {
+	var ch model.Channel
+	var configBytes []byte
+	row := s.DB.QueryRowContext(ctx, `SELECT id, name, type, config, status, created_at, updated_at FROM channel WHERE id = ?`, id)
+	if err := row.Scan(&ch.ID, &ch.Name, &ch.Type, &configBytes, &ch.Status, &ch.CreatedAt, &ch.UpdatedAt); err != nil {
+		return nil, fmt.Errorf("get channel %d: %w", id, err)
+	}
+	raw := json.RawMessage(configBytes)
+	ch.Config = &raw
+	return &ch, nil
+}
+
+func (s *Store) GetChannelByName(ctx context.Context, name string) (*model.Channel, error) {
+	var ch model.Channel
+	var configBytes []byte
+	row := s.DB.QueryRowContext(ctx, `SELECT id, name, type, config, status, created_at, updated_at FROM channel WHERE name = ?`, name)
+	if err := row.Scan(&ch.ID, &ch.Name, &ch.Type, &configBytes, &ch.Status, &ch.CreatedAt, &ch.UpdatedAt); err != nil {
+		return nil, fmt.Errorf("get channel by name %s: %w", name, err)
+	}
+	raw := json.RawMessage(configBytes)
+	ch.Config = &raw
+	return &ch, nil
+}
+
+func (s *Store) ListChannels(ctx context.Context) ([]model.Channel, error) {
+	rows, err := s.DB.QueryContext(ctx, `SELECT id, name, type, config, status, created_at, updated_at FROM channel ORDER BY id`)
+	if err != nil {
+		return nil, fmt.Errorf("list channels: %w", err)
+	}
+	defer rows.Close()
+
+	var channels []model.Channel
+	for rows.Next() {
+		var ch model.Channel
+		var configBytes []byte
+		if err := rows.Scan(&ch.ID, &ch.Name, &ch.Type, &configBytes, &ch.Status, &ch.CreatedAt, &ch.UpdatedAt); err != nil {
+			return nil, fmt.Errorf("scan channel: %w", err)
+		}
+		raw := json.RawMessage(configBytes)
+		ch.Config = &raw
+		channels = append(channels, ch)
+	}
+	return channels, rows.Err()
+}
+
+func (s *Store) UpdateChannel(ctx context.Context, id int, ch *model.Channel) error {
+	configJSON, err := json.Marshal(ch.Config)
+	if err != nil {
+		return fmt.Errorf("marshal channel config: %w", err)
+	}
+	query := `UPDATE channel SET name=?, type=?, config=?, status=? WHERE id=?`
+	_, err = s.DB.ExecContext(ctx, query, ch.Name, ch.Type, configJSON, ch.Status, id)
+	if err != nil {
+		return fmt.Errorf("update channel %d: %w", id, err)
+	}
+	return nil
+}
+
+func (s *Store) DeleteChannel(ctx context.Context, id int) error {
+	_, err := s.DB.ExecContext(ctx, `DELETE FROM channel WHERE id = ?`, id)
+	if err != nil {
+		return fmt.Errorf("delete channel %d: %w", id, err)
+	}
+	return nil
+}
diff --git a/internal/store/template.go b/internal/store/template.go
new file mode 100644
index 0000000..5a3748c
--- /dev/null
+++ b/internal/store/template.go
@@ -0,0 +1,63 @@
+package store
+
+import (
+	"context"
+	"fmt"
+
+	"aiaa-notification-service/internal/model"
+)
+
+func (s *Store) CreateTemplate(ctx context.Context, t *model.Template) error {
+	query := `INSERT INTO template (name, content) VALUES (?, ?)`
+	result, err := s.DB.ExecContext(ctx, query, t.Name, t.Content)
+	if err != nil {
+		return fmt.Errorf("create template: %w", err)
+	}
+	id, _ := result.LastInsertId()
+	t.ID = int(id)
+	return nil
+}
+
+func (s *Store) GetTemplate(ctx context.Context, id int) (*model.Template, error) {
+	var t model.Template
+	err := s.DB.GetContext(ctx, &t, `SELECT * FROM template WHERE id = ?`, id)
+	if err != nil {
+		return nil, fmt.Errorf("get template %d: %w", id, err)
+	}
+	return &t, nil
+}
+
+func (s *Store) GetTemplateByName(ctx context.Context, name string) (*model.Template, error) {
+	var t model.Template
+	err := s.DB.GetContext(ctx, &t, `SELECT * FROM template WHERE name = ?`, name)
+	if err != nil {
+		return nil, fmt.Errorf("get template by name %s: %w", name, err)
+	}
+	return &t, nil
+}
+
+func (s *Store) ListTemplates(ctx context.Context) ([]model.Template, error) {
+	var templates []model.Template
+	err := s.DB.SelectContext(ctx, &templates, `SELECT * FROM template ORDER BY id`)
+	if err != nil {
+		return nil, fmt.Errorf("list templates: %w", err)
+	}
+	return templates, nil
+}
+
+func (s *Store) UpdateTemplate(ctx context.Context, id int, t *model.Template) error {
+	query := `UPDATE template SET name=?, content=? WHERE id=?`
+	_, err := s.DB.ExecContext(ctx, query, t.Name, t.Content, id)
+	if err != nil {
+		return fmt.Errorf("update template %d: %w", id, err)
+	}
+	return nil
+}
+
+func (s *Store) DeleteTemplate(ctx context.Context, id int) error {
+	_, err := s.DB.ExecContext(ctx, `DELETE FROM template WHERE id = ?`, id)
+	if err != nil {
+		return fmt.Errorf("delete template %d: %w", id, err)
+	}
+	return nil
+}