Provided is an automatic head care system and an automatic hair washing system for caring a person's head in a safe and effective manner without applying a straining force on the person's neck. In order to achieve the object, the following steps are performed in turn: a head receiving step in which a pair of arms 114L, 114R are placed at positions for receiving a person's head 10 on a suppotring body 112; a water washing step in which water ejected from a plurality of nozzles 110 is poured to the head 10 while the pair of arms 114L, 114R are swung; a shampoo step in which washing liquid ejected from the plurality of nozzles 110 is poured to the head 10 while the pair of arms 114L, 114R are swung; and a head care step in which the head 10 is cared by performing the push-rotating of the pair of arms 114L, 114R in the direction of approaching the head 10 so as to bring the plurality of contacts 109 into contact with the head 10 and by swinging the pair of arms 114L, 114R while moving the plurality of contacts 109.