Photovoltaic building fixing device

The utility model discloses a photovoltaic building fixing device which comprises a base, the upper surface of the base is fixedly connected with two supporting vertical rods which are symmetrical in position, the side face of each supporting vertical rod is provided with a strip-shaped limiting adjusting hole, the inner wall of each limiting adjusting hole is provided with an adjusting bolt in a sliding mode, and the surface of each adjusting bolt is sleeved with a limiting block. The surface of the limiting block is fixedly connected with an inclined supporting rod, the end, away from the supporting vertical rod, of the inclined supporting rod is rotationally connected with a positioning sliding block, a guiding sliding groove is formed in the upper surface of the base, and the positioning sliding block is slidably connected with the inner wall of the guiding sliding groove. According to the utility model, through the arrangement of the installation slide rail and the photovoltaic panel fixing assembly, a p