Provided is a laundry treatment apparatus which may sequentially perform pre-washing, main washing, drying, and ironing in one place. The laundry treatment apparatus includes: a pre-washer with an accommodation space which accommodates the laundry and has a sink bowl having an open top portion; a main washer which is provided beside the pre-washer; a dryer which is provided beside the main washer; an ironing part which is provided beside the dryer, and has a flat top surface to iron the laundry; a first upper panel which is provided on a top portion of the main washer and the dryer and has a flat top surface; a second upper panel which forms the top surface of the ironing part; and a lid which is provided on a top portion of the pre-washer to open and close the accommodation space.