A laundry treating apparatus is disclosed, which enables washing, drying, deodorization, sterilization and wrinkle removal. The laundry treating apparatus comprises a cabinet provided with a receiving space in which laundry is received; a supply unit for supplying at least one of the air and water into the receiving space; a presser provided in the receiving space to pressurize the laundry so as to remove a wrinkle of the laundry; and a clamp unit detachably pressurizing and fixing both ends of the laundry before pressurizing the laundry by using the presser.