An image pickup apparatus comprises one holding component which holds two or more prisms and an image pickup element. As for the holding component, a prism holding portion and an image pickup element holding portion are formed in one component. At the prism holding portion, an opening is formed. At the image pickup element, the image pickup element holding portion is fixed. Each prism is fixed to the holding component from the both sides of the holding component by fitting a projected portion into a penetration hole, respectively.