Method and apparatus for reselecting cell in idle mode by terminal supporting public safety service.

A terminal, which supports a public safety service using an eMBMS service, needs to reselect a frequency for providing the eMBMS service in an idle mode. The terminal is configured to: receive a connection release message including priority information for cell reselection; check whether the terminal is in an idle mode; and when the terminal is in the idle mode, reselect a cell to be connected on the basis of priority information of the frequency, wherein the priority information is set such that a multimedia broadcast multicast service (MBMS) serving frequency, which is used to receive an MBMS service by the terminal, has the highest priority. According to this method, the terminal supporting the public safety service may select a current frequency and thus continuously receive the public safety service, when the cell is reselected.