With the progress of society, people's awareness of environmental protection is gradually increasing. The sustainable development of society is threatened by many problems, such as resource shortage, global warming and other issues, and miniature electric vehicles play an invaluable role in solving environmental pollution and traffic congestion. The design and development of electric vehicles is even more important. Combined with the social development trend and the concept of green travel, this paper takes the design of micro electric vehicles as the research object. Through market research, it analyzes users' needs for micro electric vehicles from three perspectives, such as styling style design, color design, and performance demand design, and determines the design plan. After designing the preliminary model of the electric vehicle, the satisfaction of 50 users in experiencing the mini electric vehicle was tested, and the results showed that the majority of users had a high degree of satisfaction and could be put into mass production. Later, the LMD algorithm is used to detect the damage degree of the miniature electric vehicle under the condition of door deformation. The experimental results prove that the miniature electric vehicle designed in this paper has good anti-collision performance.