Based on the analysis of shale gasbearing of the Upper Ordovician Wufeng Formation and the Lower Silurian Longmaxi Formation in Well DY1, DY2 in Dingshan area, Qijiang County, Southeastern Sichuan Basin, the paper discusses the influences of various geological factors on the enrichment and productivity of shale gas reservoir.Methods:This paper carries out research with well and logging data comparison,seismic data interpretation and test data et al.Results:The shale gas geological conditions in Dingshan area are advantageous with high TOC, moderate thermal evolution degree, good reservoir properties and gasbearing. Tectonic style is an important factor for controlling the shale gas enrichment, and positive structure is the most conducive type for the enrichment of shale gas in the Sichuan basin. The Dingshan structure is a noselike faulted anticline which located in the edge of the Sichuan basin and adjacent to the Qiyueshan fault, it is also favorable for shale gas enrichment. And the Qiyueshan fault controls gasbearing level in different locations of the Dingshan structure. Fractures are more developed in the locations with short distance to the Qiyueshan fault and shallow buried depth, the horizontal and vertical permeability of shale has obvious increased, shale gas is more prone to largescale emissions, then finally resulting in poor gasbearing of shale gas reservoir.Conclusions:Integrating with shale depth and structural feature, we divide the Dingshan structure into five zones as shallow buried gentle area, western slope area with high angle, middle flat zone, eastern slope area with high angle and deep buried gentle area. Based on the thickness of high shale , and taking “structure and preservation condition” as the key with combination of shale depth, this paper chooses middle flat zone as the most favorablefor shale gas exploration in Dingshan Area.