Automobile bracket fixing device

The utility model discloses an automobile bracket fixing device which comprises a bottom plate, a top plate, a back frame, a fixing side frame, a pressing front plate and a pressing rod. Pressing front plates are fixed to the two sides of the front end of the bottom plate; a threaded hole is formed in the plate surface of the pressing front plate, and a pressing rod is fixed in the threaded hole; a rod body of the pressing rod is provided with threads matched with the threaded hole. A fixed side frame is correspondingly arranged in front of the pressing end of the pressing rod; the fixed side frame is of an L-shaped plate-shaped structure; a U-shaped top plate is fixed at the top of the fixed side frame; a back frame is fixed below the middle part of the top plate; the back frame comprises a back plate and side plates, and mounting holes are formed in the back plate; through the device, the bracket in the shape can be stabilized, the bracket is easy to place and convenient to use, and the punching difficulty