A laundry treatment apparatus includes a tub configured to store water therein, a drum body rotatably provided in the tub to store laundry to be washed, a drum inlet through which the laundry is introduced into the drum body, an agitating body extending from a bottom surface of the drum body toward the drum inlet, and configured to be rotatable in the drum body, a chamber formed in the agitating body, an outlet configured to communicate with the chamber by penetrating the agitating body, a wash-water-flow forming portion provided in the agitating body, and configured to form a water flow in the drum body, and a discharge-water-flow forming portion provided in the chamber, and configured to form a water flow in the chamber.