An information processing apparatus includes: a housing; a substrate fixed in the housing; a touch panel installed in the housing and disposed to be inclined in a direction approaching the substrate toward a front of the information processing apparatus; and an opening detection switch provided between an edge of the touch panel on a front side and the substrate. The opening detection switch includes: a contact opening and closing portion fixed to the substrate; a key top having a hemispherical surface in contact with the edge; and an elastic member elastically deformable by a pressing force from the key top pressed by the edge to press down the contact opening and closing portion.