A washing machine is provided. The washing machine may include a main body having a laundry loading hole formed therein, a door coupled to the main body to selectively open and close the laundry loading hole, a protruding part coupled to the door and selectively received in a protrusion housing coupled to the main body, a plurality of reed sensors provided in one of the door or the main body, and a magnet provided in the other of the door or the main body, outside of the protrusion housing so as react to the magnet and sense and opening/closing of the door.