Disclosed herein is a laundry treatment apparatus (100). The laundry treatment apparatus (100) includes a main washing device (200) and an auxiliary washing device (300) for treating laundry, and the auxiliary washing device (300) includes a tub (320) accommodating wash water, a drum (330) rotatably provided in the tub, and a pulsator (400) rotatably provided in the drum (330) so as to be rotated due to friction with at least one of the wash water and the laundry accommodated in the drum. Since there is no need for components such as a clutch, the auxiliary washing device (300) can have a simple structure compared to when having a clutch, and the overall manufacturing costs of the laundry treatment apparatus (100) can be reduced.