The present disclosure relates to a laundry treating apparatus, including a tub provided inside a main body and a drum rotatably provided inside the tub; and a detergent supply apparatus configured to supply laundry detergent to the tub, and provided to be inserted into or withdrawn from a front surface of the main body, wherein the detergent supply apparatus includes a housing defining an outer appearance; a storage container disposed to extend in a front-rear direction of the main body to store the laundry detergent, and mounted to the housing; and a laundry detergent pump provided at one side of the storage container, and configured to suck laundry detergent stored in the storage container, and then to discharge the laundry detergent to a lower side of the housing.