This paper analyzes the transportation characteristics of the coal expressway and the factors considered in the route selection to verify the design of an example. Taking the Jining to Hohhot section of the Jingxin expressway as an example, it analyzes the location and terrain climate of the main coal transportation channel And other factors to choose a suitable coal expressway design scheme. Through the comprehensive comparison of economy, technology and rationality, the sunny slope route scheme, hillside route scheme and tunnel layout scheme I are finally selected. In addition, the rationality and safety of the long-and-large downhill design was demonstrated, and feasible road design schemes were proposed to provide a guarantee for the driving safety of the road section.