A server for providing a ride sharing service for an autonomous driving vehicle, includes a memory; and a controller to receive a signal from a first application installed in a first external device associated with a first user for indicating that the autonomous driving vehicle is available, the first user being associated with an ownership of the autonomous driving vehicle; receive a ride sharing request from a second application installed in a second external device associated with a second user, the ride sharing request including a first and second destination location, the first destination location corresponding to a location of the second external terminal or a pick-up location, and the ride sharing request and the second destination corresponding to a drop-off point; search autonomous driving vehicles and identify candidate vehicles to service the ride sharing request based on a condition; and transmit a control signal to the autonomous driving vehicle to initiate autonomous driving.