A laundry treating apparatus, comprising: a main body having a laundry inlet port disposed at a front surface thereof; a laundry accommodating portion provided inside the main body to accommodate laundry; and a door rotatably provided on a front surface of the main body to open and close the laundry inlet port, wherein the door comprises: an outer frame provided with an opening portion, and disposed toward an outer side of the main body; a transparent front panel attached to a front surface of the outer frame to cover the opening portion of the outer frame; an inner frame disposed at a rear surface of the outer frame toward an inner side of the main body and coupled to the outer frame; and a plurality of hooks (36, 37, 46, 47) extending from the outer frame and the inner frame to fasten the outer frame and the inner frame to each other, wherein the plurality of hooks (36, 37, 46, 47) comprise: a first hook protruding from an outer circumference of the outer frame towards the inner frame; and a second hook protruding from an outer circumference of the inner frame towards the outer frame, and wherein a part of the first hook and a part of the second hook are engaged with each other characterized in that the laundry treating apparatus further comprising a pressing portion (39, 40) protruding from the rear surface of the outer frame and configured to press the second hook toward the first hook; wherein the pressing portion (39, 40) comprises: a plurality of pressing ribs protruding toward an inner circumferential surface of the second hook; and a connecting rib extending circumferentially on the outer frame and protruding toward the inner frame and interconnecting the plurality of pressing ribs. a main body having a laundry inlet port disposed at a front surface thereof; a laundry accommodating portion provided inside the main body to accommodate laundry; and a door rotatably provided on a front surface of the main body to open and close the laundry inlet port, wherein the door comprises: an outer frame provided with an opening portion, and disposed toward an outer side of the main body; a transparent front panel attached to a front surface of the outer frame to cover the opening portion of the outer frame; an inner frame disposed at a rear surface of the outer frame toward an inner side of the main body and coupled to the outer frame; and a plurality of hooks (36, 37, 46, 47) extending from the outer frame and the inner frame to fasten the outer frame and the inner frame to each other, wherein the plurality of hooks (36, 37, 46, 47) comprise: a first hook protruding from an outer circumference of the outer frame towards the inner frame; and a second hook protruding from an outer circumference of the inner frame towards the outer frame, and wherein a part of the first hook and a part of the second hook are engaged with each other characterized in that the laundry treating apparatus further comprising a pressing portion (39, 40) protruding from the rear surface of the outer frame and configured to press the second hook toward the first hook; an outer frame provided with an opening portion, and disposed toward an outer side of the main body; a transparent front panel attached to a front surface of the outer frame to cover the opening portion of the outer frame; an inner frame disposed at a rear surface of the outer frame toward an inner side of the main body and coupled to the outer frame; and a plurality of hooks (36, 37, 46, 47) extending from the outer frame and the inner frame to fasten the outer frame and the inner frame to each other, wherein the plurality of hooks (36, 37, 46, 47) comprise: a first hook protruding from an outer circumference of the outer frame towards the inner frame; and a second hook protruding from an outer circumference of the inner frame towards the outer frame, and wherein a part of the first hook and a part of the second hook are engaged with each other characterized in that the laundry treating apparatus further comprising a pressing portion (39, 40) protruding from the rear surface of the outer frame and configured to press the second hook toward the first hook; a first hook protruding from an outer circumference of the outer frame towards the inner frame; and a second hook protruding from an outer circumference of the inner frame towards the outer frame, and wherein a part of the first hook and a part of the second hook are engaged with each other characterized in that the laundry treating apparatus further comprising a pressing portion (39, 40) protruding from the rear surface of the outer frame and configured to press the second hook toward the first hook; a plurality of pressing ribs protruding toward an inner circumferential surface of the second hook; and a connecting rib extending circumferentially on the outer frame and protruding toward the inner frame and interconnecting the plurality of pressing ribs.