Abstract: Linqing Region was experienced transformation from platform to Diwa(geodepression)stages during the period from Late Triassic to Early Jurassic.Severe extensions and faultdown took place during Jurassic-Early Cretace-ous and Paleogene,respectively.Thereafter,the two cycles of Mesozoic and Cenozoic Diwa(geodepression)basins and oil formations were formed.In addition to various basin types and complex structural patterns,combined with possible Paleozoic-Triassic platform type oil/gas in this region,it becomes a promising oil/gas prospect area.