Abstract: With the development of economic globalization, some trans-province metropolitan circles such as Yangtze River Delta, Jingjintang, Pearl River Delta,have become the most important spatial unit of China regional economy development. Today, how to deal with the relationship between administrative region and economic region, and to achieve trans-province metropolitan circle' spatial conformity, are the focuses of government and academic research. Based on the discrimination of four concepts of city cluster, metropolitan district, metropolitan circle and metropolitan belt,the article puts forward concept of trans-province metropolitan circle and its six basic mature conditions. Through the theory of 'administrative region's economy', the paper considers system of administrative region's division and government management is the bottleneck of trans-province metropolitan circle conformity under present system. Finally, based on the governance theory, it puts forward a new conformity thought —'trans-province region governance’and builds up a basic system of trans-province regional governance, which including: ①modern region's governance system of member governments of trans-province metropolitan circle;②modern political region system of trans-province metropolitan circle;③modern region's market system of trans-province metropolitan circle;④modern region society system of trans-province metropolitan circle;⑤modern inter-city cooperation system of trans-province metropolitan circle.