The invention relates to the technical field of glass and specifically relates to a ground glass. The ground glass comprises a glass substrate and aground layer of 0.5-2mm, wherein the glass substrate has a multilayer structure; the glass substrate is formed by adhering 3-6 layers of functional glass with polyurethane films or PVB films; the functional glass is arranged as an ultraviolet-proof glass, a high borosilicate glass and a heat-insulating layer; the high borosilicate glass is arranged on the outmost layer of the glass substrate relative to the ground layer; the thickness of each layer of the glass substrate is 1-3mm; the layer quantity of each functional glass is 1-2. The ground glass provided by the invention is higher in strength and is capable of insulating heat and reducing the ultraviolet radiation. A silicon nitride plating layer is arranged on the glass substrate of the glass and the abrasive resistance and the surface adhesiveness of the connecting side of the glass substrate and the ground layer can be increased, so that the ground layer is tightly adhered to the glass substrate. When the ground layer is arranged as a polymer coating, the silicon nitride plating layer can adapt to the frequent exchange of the polymer coating of the ground layer.