Fuente: Wipo "digitalization" The invention discloses a road surface sand and dust monitoring and early warning system based on big data and a use method, and the system comprises an environment sensing system which is used for obtaining meteorological data, sand and dust particle spectrum data, road surface dust data and image data on an expressway; the data processing system is used for processing the data acquired by the environment sensing system; the intelligent early warning system is used for carrying out early warning on the sand and dust condition of the road surface according to the data acquired by the environment sensing system and the data result processed by the data processing system; and the control system is respectively connected with the environment sensing system, the data processing system and the intelligent early warning system. The method has the advantage of realizing intelligent and reliable monitoring and early warning of sand and dust on the expressway.