Abstract: This study introduced technical content and related situation of the project of “High impact weather risk forecasting and warning technology and its application in highway meteorological service” which won the third prize of Hebei Science and Technology Progress Award in 2018. The ideas, methods, operational applications and benefit outputs of highway high impact weather risk forecasting and warning technology were elaborated, and the objective model based on “risk census-risk zoning-typical case disaster assessment-establishing risk early warning and impact forecasting was introduced in details. It was pointed out that it is very necessary and valuable to carry out traffic weather services based on impacts and risks and to issue risk forecasting and warning products for traffic control departments at present, however, there are still many shortcomings in multisource data fusion, and further research is needed.