Advertisement installation fixing support with high stability and convenient to splice

The utility model discloses an advertisement installation fixing support with high stability and convenient to splice, which comprises a supporting main rod, a vertical adjusting sliding groove is formed in the supporting main rod, and a vertical adjusting sliding block is connected in the vertical adjusting sliding groove; the advertisement frame is arranged at the front end of the supporting main rod; the transverse adjusting sliding grooves are formed in the upper portion and the lower portion of the advertising frame, and transverse adjusting sliding blocks are connected to the interiors of the transverse adjusting sliding grooves; the limiting threads are connected to the interiors of the stable sliding grooves; the rear supporting rod is connected to the rear end of the stabilizing rod, and the interior of the rear supporting rod is connected with a movable shaft; the connecting rod is connected to the outer wall of the rear supporting rod; through the arrangement of the connecting rods, the stress effe