A door for a drum washing machine comprises an inner frame, a glass tub, a middle frame, a window screen and an outer frame which are arranged sequentially from the inner side of the door to the outer side of the door. The middle frame is in welded connection with the inner frame, the glass tub is clamped between the inner frame and the middle frame, the outer frame is in snapped connection with the middle frame and/or the inner frame, and the window screen is clamped between the outer frame and the middle frame. The window screen is free of snap jaw, so that the structure is simplified, and production of the window screen is accelerated.