According to integrated analysis of the basin tectonic-sedimentary evolutionary history from Upper Triassic Xujiahe period to Cretaceous, it’s believed that the microsoft-com:office:smarttags" />Sichuan Basin belongs to intracontinental compressional superimposed basin. The basin formation and evolution are controlled strictly by polychromic, nonsynchronous and multidirectional thrusting-napping processes of Longmen Mountains, Micang Mountains-Daba Mountains and Xuefeng Mountains. And it can be divided into three secondary basin-mountain coupling systems controlled respectively by overthrust on the marginal orogenic belt. And it has formed a peculiar tectonic-sedimentary pattern, which is called “three depressions around one uplift”.