A charging system includes: a plurality of charging devices, each including a device main body having one or more charging cables connected to the main body, the charging cables being equipped with respective charging plugs; and one or more arm mechanisms each being configured to grasp any one of the charging plugs of the charging devices and automatically insert and remove the grasped charging plug to and from a charging port of a vehicle located in a charging space. Further, a number of arm mechanisms is smaller than a number of charging cables.