As to the development of the international metropolis of Beijing, Beijing quickened the pace of urban public transportation However, Beijing public transportation problem still many, service ability inadequacy, traffic jams, and residents serious growing travel demand a relatively large gap still exists, far below the level of developed country city, all these problems needed to In order to improve the public transport in Beijing, this paper from the ground transportation, railway transportation, taxi, three aspects of public transportation detailed analysis, find out the reasons, and the analysis of existing policy of the pros and Through the study of problems, and referencing foreign public transportation perfecting the urban development experience for construction, puts forward some public traffic for leading urban transportation system, and to improve the efficiency of urban public transportation system for building the saving-type sustainable development, the Beijing public transportation systems provide feasible 还有关键词呢?