The utility model discloses a horizontal abrasion-resistance apparatus for a cement pavement base material. The horizontal abrasion-resistance apparatus comprises a water tank, a support seat with the adjustable height, and a clamp arranged on the support seat, wherein the support seat is arranged inside a container; a through hole is formed in the bottom surface of the container; a water collector is connected with the lower part of the through hole in a penetrating manner; a filter sieve is arranged on the through hole; the water collector is connected with a water pump through a pipeline; the water tank is arranged above the clamp and connected with the water pump; the bottom end of the water tank is connected with a discharge pipe; a high-pressure speed adjusting device is arranged on the discharge pipe and connected with a trumpet pipe arranged at the top surface of the clamp. The horizontal abrasion-resistance apparatus for the cement pavement base material is utilized to test the anti-erosion performance of the cement pavement base material, a void water concrete pavement board can be fully simulated to generate micro-bending deformation to extrude water flow to horizontally scour a fine material at the top surface of a base layer in a radial manner under the action of vehicle load, the horizontal abrasion-resistance apparatus can simulate an environment which is similar to the void water concrete pavement base layer in the scouring environment, and the anti-erosion performance of the cement pavement base layer can be evaluated.