A laundry treating apparatus may include a main body having a front panel having a laundry inlet port and configured to receive laundry loaded through the laundry inlet port, and a door rotatably coupled to the front panel to open and close the laundry inlet port. The door may include an outer frame provided with an opening and facing an outside of the main body; a front glass coupled to a front surface of the outer frame to cover the opening; and an inner frame coupled to a rear surface of the outer frame and facing an inside of the main body. The outer frame may include an adhesive groove provided on a front surface of the outer frame to receive an adhesive for bonding the front glass to the outer frame; a reinforcing portion provided on a rear surface of the outer frame in correspondence to the adhesive groove to reinforce a rigidity of the outer frame; and a first hook that protrudes from an outer circumference of the outer frame toward an outer circumference of the inner frame. The inner frame may include a second hook that protrudes from an outer circumference of the inner frame toward the outer frame to fasten the outer frame and the inner frame to each other by an interference fit between the first hook and the second hook, thereby enhancing a fastening force between the outer frame and the inner frame.