A channel zapping method is provided. The channel zapping method includes setting a channel group selected from among a plurality of channel groups classified by genre as a target for group zapping, and if a channel zapping command is input, performing channel zapping to a next channel in the channel group to which a current channel belongs, and if a group zapping command is input, performing channel zapping to a channel in another channel group included in the target for group zapping, and the another channel group is a channel group in a highest class or in a sub class which belongs to the highest class in the each genre.