An apparatus and method for processing channel information in a broadcasting system for transmitting/receiving a cable broadcasting signal are disclosed. In particular, each receiver transmits host channel view capacity information containing the length of channel information which can be displayed on a screen to a headend located at a remote place, and the headend stores the host channel view capacity information in a database and determines and transmits most suitable channel information of each receiver to each receiver. Accordingly, each receiver can display only channel information, which can be most accurately recognized by viewers, among a variety of the channel information which can be displayed on the screen.