Disclosed is a DMB (Digital Multimedia Broadcasting) terminal and a method for providing a broadcast preview service in a terrestrial DMB system. The method provides a broadcasting service preview by a DMB terminal in a DMB system having a DMB broadcasting station for providing the DMB terminal with ensembles containing at least one broadcasting service provided by respective service providers. The method includes receiving all of the ensembles at a broadcasting service preview request of a user, creating preview images for broadcasting services within the ensembles, and displaying the preview images on a screen together with corresponding broadcasting service information. The user can obtain detailed information regarding available broadcasting services and conveniently select a desired broadcasting service without additional operation.