A mobile terminal and a ringtone playing method thereof are provided. The playing method includes: selecting a music file which is to be set as a ringtone, and popping up a playing preview interface corresponding to the music file and, meanwhile, playing the music file; sliding a cursor of the playing preview interface to select a playing start position and a playing end position on a playing progress bar corresponding to the music file so as to acquire and save playing information of the ringtone, wherein the playing information comprises a playing start time point and a playing end time point of the ringtone; and in response to occurrence of a ringing event, reading the saved playing information of the ringtone and playing a music clip between the playing start time point and the playing end time point.