To provide a shampoo apparatus capable of washing head skin and hair in such a level that a refreshing sense is obtained after the shampoo and installing easily in an existing bathroom because the apparatus is simplified and downsized.

The shampoo apparatus 100 comprises a main body 101 provided on a wall face in the bathroom, a guide member 102 shaped like an almost circular arc supported rockably with the main body 101, a rocking drive mechanism 103 for rocking the guide member 102 in repetition, a washing head 104 mounted slidably on the inner peripheral side of the guide member 102, and a reciprocating drive mechanism 105 to make the washing head 104 perform reciprocating movements along the guide member 102.