中文摘要：

城市群是国家参与全球竞争和国际分工的全新地域单元,城市群发育对于推进城市化进程、增强综合国力具有显著作用,研究城市群发育驱动力具有重要价值。伴随着不断加强的全球化、信息化进程,中国城市群逐渐发育起来,在此过程中出现五个新型驱动力。通过对中国23个城市群的综合比较分析发现：经济全球化驱动中国城市群与国际接轨,对外开放程度越高、承接产业转移和技术转移越多的城市群发育程度越高;新型工业化驱动中国城市群成为制造业基地,工业化水平越高、高技术产业越发达的城市群发育程度越高;信息化整合城市群信息资源并驱动其快速流动,信息化水平越高的城市群发育程度越高;交通快速化驱动中国城市群高密度集聚,为城市群形成发育奠定坚实基础;新政策是中国城市群发育的助推器,为城市群发育指明方向。

英文摘要：

Urban agglomeration（UA） is a new terrain unit involved in international competition and international division of labor.With the development of economic globalization and the boot of information and technology,UAs in China have developed gradually.In this process,five new-type driving forces（DF） have appeared,which are economic globalization,new-type industrialization,informatization,rapid transportation and government dominant,and studies on the five ones have important value.Based on analysis of mechanism of five new-type DF for UA and comparative analysis of some relative indexes,it is found out as follows： economic globalization drives UAs enter the international system and the higher level of UAs opening and the more industrial and technology transfers,the better UAs develop under the background of economic globalization;new-type industrialization drives UAs become manufacturing bases which injects new energies for development,and the higher level of industrialization and the better high-tech industry develops,the better UAs develop;informatization integrates all information and drives them flow at a high speed,and the higher level of informatization,the better UAs develop under the background of informatization age;transportation is the channel for materials and information exchange,and rapid transportation impels UAs to be connected closely and builds up the foundation of UAs development;new correlative policy is like a roll booster for impelling UAs development,in a correct way.Based on the above analysis,the paper suggests that further studies towards UAs development in China should focus on spatial and temporal differences of DFs and braking forces.