A method for providing a subscription service in a terminal installed with an instant messaging application by interworking with an application server is provided. The method comprises displaying recommendation boards recommended by the application server or boards published in a subscription channel on an interface screen, receiving a request for subscribing to a specific channel that has published the recommendation board, from a user, and transmitting information on a channel for which a subscription is requested to the application server and requesting registering as a subscription channel. Each board displayed on the interface screen is a content distribution unit that is composed of a board title and a plurality of contents, and is exposed along with a name of a channel having published a corresponding board. The channel publishing each board is an account that has subscribed to a service providing the instant messaging application.