New type of curbstone for cement pavement, similar in dimensions to existing curbstones. It has a rectangular structure with a length, width and thickness of 75 cm × 35 cm × 25 cm. The upper layer is 19 cm thick ordinary concrete and the lower layer is 6 cm Porous concrete is compositely cast, and the outer side of the back has 5cm × 3cm penetrating recessed holes and culverts along the length direction. The edge stone is suitable for roads with a cement surface thickness of 22 cm (roads with a cement surface thickness greater than or less than 22 cm). cm).