An autonomous mobile object includes a sensor unit configured to sense the condition of a road, an operation controller configured to cause the autonomous mobile object to move autonomously on the basis of an operation command, an obtainer configured to obtain surveyed place data, which is information about a surveillance target place and data relating to a method of surveillance associated with each other, and an information collector configured to collect information about the condition of the surveillance target place by the sensor unit when the autonomous mobile object reaches the surveillance target place while travelling on the basis of the operation command.