Provided are a device and a method for efficiently creating a following path of the target to be followed by a mobile device to enable reliable follow-up. A movement path creation unit is included that creates a path that is a following path on which a target is to be followed by a mobile device. The movement path creation unit sequentially sets a piece of path position information (waypoint) near the target, and sequentially connects the set pieces of path position information to create the path. The movement path creation unit sets the piece of path position information at a position determined in accordance with a predetermined rule based on a position and a travel direction of the target. When the target has moved a predetermined distance, a new piece of path position information is set.