Road shot blasting machine is a mechanical method to shoot the pellets to the working surface at a high speed and a certain Angle, so that the pellets impact the surface of the road, so that the surface of the road rough and remove the residue effect, at the same time, the negative pressure generated by the dust collector will recover the pellets and the impurities and dust under the cleaning after the air flow cleaning, the intact pellets will be automatically recycled. Impurities and dust will also fall into the dust collection box.