A laundry treating apparatus is disclosed. The laundry treating apparatus includes a cabinet forming an external appearance of the laundry treating apparatus, a laundry accommodation portion arranged in the cabinet and providing a space to accommodate laundry, a machine chamber including at least one of an air supply unit to supply air to the laundry accommodation portion and a moisture supply unit to supply moisture to the laundry accommodation portion, the machine chamber being provided separately from the laundry accommodation portion, a laundry supporter to support a hanger having laundry placed thereon and to move the hanger such that a free end of the hanger forms an arc trajectory in the laundry accommodation portion.