Disclosed are a robot and a method for controlling the robot. The robot includes: a plurality of sensors; a memory which stores a plurality of services and controls commands corresponding to the plurality of services; and a processor which, when the occurrence of an event is sensed on the basis of at least one of the plurality of sensors, determines a service corresponding to the event on the basis of information sensed by the at least one sensor, and controls the robot to provide a user with the determined service. The processor sets a sensing target corresponding to the service determined on the basis of the sensed information, determines a sensor combination for achieving the sensing target set on the basis of the information about the plurality of sensors, and obtains additional information on the basis of the determined sensor combination, and provides the user with the service.