Photovoltaic panel substrate

The invention belongs to the technical field of solar cell modules, and particularly discloses a photovoltaic panel substrate which comprises a glass fiber core layer, a first high-molecular polymer coating is sprayed on the upper surface of the glass fiber core layer, and a second high-molecular polymer coating is sprayed on the lower surface of the glass fiber core layer. The glass fiber core layer comprises two layers of glass fiber composite felts, and the two layers of glass fiber composite felts are connected through a polyurethane adhesive; the glass fiber core layer, the first high-molecular polymer coating and the second high-molecular polymer coating are molded into an integral structure through mold pressing foaming. According to the invention, the product has high toughness and bending performance, can effectively avoid the problems of cracking, cracking and the like of the photovoltaic panel in the use process, has high strength and weather resistance, and can maintain the stability of the materi