New energy highway service areas provide a strong guarantee for the rise of electric vehicles, and with the large number of highway service areas deployed in the same region, multiple highway service areas are connected to form a highway land area system as a future development trend. Therefore, this paper proposes a cooperative optimization operation strategy of highway land system based on Nash negotiation. Firstly, the model of highway land system with heat and gas as the main electricity is established, and the robust optimization method is used to deal with the uncertainty of electric vehicle charging; secondly, in order to explore the reasonable electricity interaction mechanism between highway service areas, this paper establishes the cooperative operation model of highway land system based on the Nash negotiation, and transforms the model into the problem of maximizing the operational efficiency of land system and maximizing the payment of electricity transaction. Finally, the ADMM algorithm is used to solve the problem in order to protect the privacy of each service area. The results show that the operation cost of the land area system is reduced by 10.7%, and the wind energy consumption rate reaches more than 95%.