GB 7258-2012 Safety Specifications for Power-driven Vehicles Operating on Roads has been implemented for 2 years.At the end of 2014，the standard drafting group started a new round of revision and solicited opinions from various sectors of the community through numerous seminars and verifications.At the end of 2016，the group had completed the standard validation.The standard improves the safety requirements for large and medium-sized buses and the escape convenience to enhance the level of the safety equipment of heavy-duty trucks and trailers，and includes the researches on the management of new energy vehicles，station wagons，and small buses.The revision of this standard will have a profound impact on the manufacturing，management and transportation of motor vehicles.It elaborates the revision process of the standard and the change of the 2012 version of the standard and analyzes the thinking and the impact of the revision.It makes it easy for the readers to understand the changes of the standard and is beneficial to the relevant enterprises and departments for the use and implementation of the standard.