PURPOSE: A wall mounted laundry collecting box is provided, in which a laundry collecting box is installed in the wall between the bathroom and secondary kitchen. CONSTITUTION: A wall mounted laundry collecting box comprises a laundry collecting box which is designed to be adjacent to a bathroom and a secondary kitchen and is installed in the wall between the bathroom and secondary kitchen; a case(20) which forms the outer shape of the laundry collecting box; an input door and a collection door(27) fixed at the case of the laundry collecting box; a laundry box(40) which is installed to be detachable; a shutoff door(30) which is fixed inside the case; and an LED(70) which is lighted by sensing the weight of the laundry.