A washing machine of the present disclosure includes a cabinet having a first opening and a door assembly provided to open and close the first opening, wherein the door assembly includes a door main body having a second opening provided to be opened and closed independently of the first opening and a rear holder corresponding to the first opening, and the rear holder includes a door sealing unit spaced apart from the second opening and provided to come in contact with the diaphragm to seal the inside of the cabinet when the first opening is closed by a door assembly. By the configuration, the cabinet can be sealed more effectively, and laundry items or detergent may be additionally inserted even during a washing process.