The utility model discloses an anti-seepage design structure of an urban road. Relating to the technical field of urban roads, Ground, Foundation tank and floor, A foundation groove is formed in the ground. a bottom plate is fixedly mounted at the bottom of the foundation groove; One end of the upper surface of the bottom plate is fixedly connected with one end of a first supporting plate. The other end of the upper surface of the bottom plate is fixedly connected with one end of a second supporting plate, the other end of the first supporting plate and the other end of the second supporting plate are located on the same horizontal plane with the upper surface of the ground, and a first mounting opening and a second mounting opening are formed in the inner side of the first supporting plate and the inner side of the second supporting plate correspondingly. According to the urban road anti-seepage design structure, a road can be rapidly laid and built through the bottom plate, the firstsupporting plate and the second supporting plate, the first connecting plate and the second connecting plate of different specifications are used according to the length and the width of the road, the upper surface of the bottom plate is filled with slurry, and the upper surface of the slurry and the lower surface of the first connecting plate are located on the same horizontal plane.