In order to further deepen the reform of supply-side structure, promote logistics to reduce costs and increase efficiency, and establish a standardized, scientific and reasonable differential charging model according to law, this paper studies the realization form of differentiated charges and the determination of premium rates. the current measures of differentiation pilot are analyzed, and the impact of differential charges is evaluated. The differential toll of expressway improves the level of expressway traffic service and promotes the healthy and sustainable development of expressway traffic.