In summary, based on the assumption that the driver is boundary rational, we establish a two-group evolutionary game model of route choice composed of the expressway and ordinary highway and analyze the evolutionary dynamics of the system with different initial proportions and the influence of several important parameters, which provides a reference for drivers' route choice and traffic control guidance. The conclusion is as follows: the change of mileage, the proportion of novice drivers, and the unit time cost have large impact on the evolution of system strategy, but the initial proportion of and has almost no influence on the evolution outcome. The route choice dynamics has been extended to two driver groups, which enriches the traditional study of single group drivers.This study has also some limitations. Firstly, it assumes that the routes meet the requirements of capacity, and does not consider the situation of congestion caused by excessive road traffic, which should be reflected in further study. Secondly, the strategy assumed in this letter is two routes. In reality, expressways and ordinary roads will be crossed and distributed to form a road network, and the complex traffic network should be considered. Thirdly, the travel vehicles are assumed to be small vehicles, and should be extended. These are all promising directions to be explored in the future.