The pavement shot blasting machine is a mechanical method to throw the abrasive (steel shot or sand particle) to the working surface at a high speed and a certain angle, so that the abrasive material impacts the surface of the pavement, the pavement treated by shot blasting is clean and hard, and there is a relatively uniform texture to make its surface uniform and rough, at the same time, the negative pressure generated by the dust collector will recover the abrasive and the impurities and dust cleaned up after air cleaning, the intact abrasive will be automatically recycled, and the impurities and dust will also fall into the dust collection box. It can achieve dust-free and pollution-free construction, which not only improves efficiency, but also protects the environment.