Abstract: Bus priority transit in urban is an important treatment for the development of bus priority. Bus priority at intersections can reduce bus delay, increase their speed，just to availably ensure the bus arriving on time and enhance the level of bus reserve. This measure will be of great important to promote the development of public traffic，relax traffic pressure of urban and assure the city to develop persistently. Based on the review of bus priority at intersections，the problems and insufficiency of bus priority at intersections research in China at present are pointed out. Finally, the developing trend of bus priority research is presented.

Key words: bus priority, intersections, current situation, development

摘要： 城市公共交通优先通行是公交优先发展的一个重要措施，交叉口公共交通的优先通行能够减少公交车在交叉口的延误，从而有效地保证公交车的准时性，提高公交的服务水平，促进公共交通的发展，对缓解城市的交通压力和保证城市未来的可持续发展都具有重大意义.在回顾了国内外交叉口公交优先研究现状的基础上，指出了目前我国交叉口公交优先通行技术研究中的主要问题和不足，并探讨了交叉口公交优先技术研究的发展方向.

关键词: 公交优先, 交叉口, 研究现状, 发展