Electric vehicle battery fixing device

The invention discloses an electric vehicle battery fixing device, and belongs to the technical field of electric vehicle installation. The electric vehicle battery fixing device comprises a chassis system and a plurality of fixed supports for holding power batteries, wherein fixed supports are installed at both ends of the chassis system in a two-by-two symmetrical manner; a connecting rod is arranged between every two symmetrical fixed supports; each fixed support comprises two side plates; an upper flat plate, a reinforcing plate and a connecting seat are arranged between the two side plates; each side plate is L-shaped; the number of the upper flat plate is one; and the upper flat plate is installed at the upper ends of the two side plates. By adopting the device, the gravity of the power batteries can be uniformly distributed on the device, so that the chassis system can not be subjected to large fatigue breaking stress; and meanwhile, the device has ultrahigh safety and reliability, and the reasonable s