An information processing apparatus of the present invention includes a battery unit 4 capable of supplying electricity to a main body of the apparatus; a drive unit disposed at the bottom face of the casing 1 and capable of recording data to or reproducing data from an information medium; a cover 5 capable of covering the drive unit; and a plurality of foot portions 11 to 14 disposed at the bottom face of the casing 1. The battery unit 4 and the cover 5 are disposed adjacently along the plane of the bottom face of the casing 1. A foot portion 15 is provided at the bottom face of the battery unit 4 or the cover 5, and the foot portion 15 is disposed in the proximity of a region where the battery unit 4 and the cover 5 are facing each other. With such a configuration, even if a strong force is applied to the border portion between the cover and the battery unit, the casing can be prevented from being flexed, and the casing and an electric circuit board and the like built therein can be prevented from being damaged.