Electric vehicle is a new means of environmental protection and energy saving,and is also an important part of new energy vehicles,the development of electric vehicles can solve energy and environmental protection problems,and promote the construction of a resource-saving and environment-friendly society.However,at present,there is a trend of decline in the country's subsidies for electric vehicles,and the development technology of electric vehicles is not yet fully mature,and the battery capacity is limited,so there is an urgent need for innovation in battery swap mode.This paper uses an online questionnaire to explore the influence of quality value,sentiment value,cost value and other factors on purchase intention,and puts forward relevant suggestions on this basis.