Disclosed is an electronic fence apparatus using a GPS, which sets a boundary of an activity area of an animal by using GPS information, determines a position of the animal, and prevents the animal from escaping from the set activity area by applying a vibration or an electronic stimulation when the animal approaches the boundary of the activity area. Accordingly, it is possible to inform the user of a state of the animal while controlling the animal not to escape from a predetermined area by setting the electronic fence through GPS information, detecting the position of the animal, and generating a sound or applying the vibration or the electronic stimulation to the animal when the animal approaches the electronic fence.
