A mobile terminal having a dual display unit and a method of changing a display screen using the same are disclosed. The mobile terminal includes a main body, a front display unit for providing a multimedia mode, a rear display unit for providing a normal mode, and a screen control module for controlling to turn off the rear display unit and turn on the front display unit, and to display a multimedia execution screen in the front display unit. The method of changing a display screen of the mobile terminal having additional multimedia functions provides an optimum multimedia environment and improves user convenience and effectiveness of the mobile terminal by flexibly supporting a multimedia function to be executed according to a screen state of the rear display unit.