According to the requirements of the highway traffic meteorological disaster risk warning service and the guidance of the impactbased forecast and warning services technology, this study constructed an early warning model of traffic meteorological disaster risk, with the consideration of the highway’s hazard risk, the sensitivity of disasters’ environment, the vulnerability of disaster bodies, and the disaster prevention and reduction capacity of the highway underlying surface. On this basis, this study adopted the C/S system structure, combined the multisource data access and visualization with the product automatic processing method based on GIS technology and other key technologies, and designed the highway traffic meteorological disaster early risk warning system. It has the functions of the realtime meteorological monitoring and alarm, disaster warning analysis, automatic processing, and production of the products, manmachine interactive correction, interactive production of service products, data support and integrated display, and map management and operation. Application proved satisfactory capability in operation and good development prospects.