The utility model discloses equipment for simulating a scouring action of surface runoff to a pavement material. The equipment comprises a box body, wherein a partitioning plate and a carrying plate are arranged in the box body, a plurality of seepage holes are formed in the carrying plate, a runoff water storage tank is arranged in the box body and is located between the partitioning plate and the carrying plate, a clear water storage tank is arranged in the box body and is located below the partitioning plate, a water dispersing device is arranged above the carrying plate, a water feeding pipe is arranged on one side of the box body, a water discharging pipe is arranged on the other side of the box body, the lower end of the water feeding pipe extends in the clear water storage tank, the upper end of the water feeding pipe extends into the box body and is connected with the water dispersing device, a water suction pump and a booster pump are arranged on the water feeding pipe, a first intercepting valve is arranged on the water feeding pipe, the upper end of the water discharging pipe extends into the runoff water storage tank, and the lower end of the water discharging pipe extends into the clear water storage tank. The equipment is capable of simulating the scouring action of the surface runoff to the pavement material, well knowing the scouring action of the effect of the surface runoff to the pavement material, and providing the basis for the scouring resistance of the pavement material, thereby being beneficial to providing an effective improvement measure.