The electromagnetic compatibility of electric vehicles is not only the important technology issue in researches,development and industrialization of electric vehicles,but also the key research area of ISO.In this paper,both national and international standards of electromagnetic compatibility of electric vehicles are analyzed;it is also suggested that our standards of electromagnetic compatibility of electric vehicles be improved from several aspects such as testing items,test procedures,limit value,etc.The electromagnetic environment of electric vehicles is analyzed in terms of interfering sources,providing the solutions to electromagnetic compatibility and measures of reducing electromagnetic interference.Advanced equipments introduced into Chinese electromagnetic compatibility testing laboratories accelerate the pace of the researches on related technologies and standards;China will develop the standards system which covers from the complete electric vehicle to the key components,promote the technology improvement and industrialization work of Chinese electric vehicles,transform the latest achievements and advanced experiences of Chinese electric vehicles industry to the related standards and contribute the development of international standards. The electromagnetic compatibility of electric vehicles is not only the important technology issue in researches, development and industrialization of electric vehicles, but also the key research area of ​​ISO. This paper, both national and international standards of electromagnetic compatibility of electric vehicles are analyzed; it is also suggests that our standards of electromagnetic compatibility of electric vehicles be improved from several aspects such as testing items, test procedures, limit value, etc. the electromagnetic environment of electric vehicles is analyzed in terms of interfering sources, providing the solutions to electromagnetic compatibility and measures of reducing electromagnetic interference. Advance will introduced into Chinese electromagnetic compatibility testing laboratories accelerate the pace of the researches on related technologies and standards; China will develop the standards system which covers from the complete electric vehicle to the key components, pr omote the technology improvement and industrialization work of Chinese electric vehicles, transform the latest achievements and advanced experiences of Chinese electric vehicles industry to the related standards and contribute the development of international standards.