The invention discloses a computer fixing frame. The computer fixing frame comprises a supporting support plate. Four sets of supporting legs are arranged on one side of the supporting support plate. An adjusting support plate is hinged to the sides, away from the supporting legs, of the supporting support plate through hinges. Two adjusting devices are arranged between the adjusting support plate and the supporting support plate. Each adjusting device comprises an adjusting rod, a horizontal sliding block, a connecting sliding block, a connecting rod and a loosening and tightening nut. The side, away from the hinges, of the supporting support plate is provided with containing cavities matched with the adjusting rods, and the ends, away from the hinges, of the containing cavities are rotationally connected with the adjusting rods. Connecting sliding blocks are hinged to the ends, away from the supporting support plate, of the adjusting rods, the adjusting rods are in sliding connection with the adjusting support plate through the connecting sliding blocks, and the sides, close to the containing cavities, of the adjusting rods are in sliding connection with horizontal sliding blocks. The computer fixing frame is simple in structure and convenient and fast to use, the supporting support plate can be expanded, usage of a mouse is convenient, meanwhile, the fixing angle of a notebook computer can be adjusted according to needs, and practicability is high.