Provided is a method for re-selecting a cell by a terminal in a wireless communication system. The method comprises: determining whether conditions for suspending application of autonomous priority handling are satisfied, the autonomous priority handling applying a priority order of a terminal which is different from a frequency priority order configured from a network for a particular frequency; if conditions for suspension are satisfied, re-selecting a cell by applying the configured priority order from the network to the particular frequency; determining whether start conditions for applying the autonomous priority order are satisfied; and if the start conditions are satisfied, re-selecting a cell by applying the priority order of the terminal for the particular frequency.