In order to improve the efficiency of air transportation, reduce transportation costs and carbon emissions, the evolutionary game method is adopted to explore the influencing factors of the cargo alliance between the government and airlines. The system dynamics model (SD) is used to conduct simulation experiments on the game evolution process. The results indicate that the strategic choices between airlines are influenced by investment costs and alliance benefits, while the government's strategic choices are influenced by factors such as the carbon emission penalty coefficient paid by airlines, carbon tax subsidy amounts, social benefits, and regulatory costs. In the long run, the government should establish a dynamic subsidy mechanism and increase the diversity of subsidies to enhance the innovation and core competitiveness of airlines.