A washing machine includes a housing equipped with an inlet, a door to open or close the inlet and including a latch with a locking hole formed at the latch, a door locking device including a locking member with a locking bar formed at the locking member to be inserted to the locking hole, and configured to lock or unlock the door according to whether the locking member is fixed, an automatic door opening device to deliver driving power to the locking member so that the locking bar is removed from the locking hole, and a controller to control the door locking device to unlock the door by unfixing the locking member, in response to a completion of a washing course and to control the automatic door opening device to open the door by delivering the driving power to the locking member in response to the door being unlocked.