Abstract: The Antrim shale gas play that is composed of such four sections as Norwood, Paxton, Lachine and Upper Member widely covers above the Middle?Lower Devonian in North America’s ancient continent, where the biogenic gas is mainly distributed in the shallow, under?compaction and organic?rich shale reservoirs and usually absorbed by the organic matter and clay. The Norwood and Lachine sections have the highest contents of organic matter as major zones for shale gas exploration in this area. This paper analyzes the source rock, thickness, physical property, mineral content, fracture system and its reservoir?forming role of this play, and then evaluates its explorative potentials.It is concluded that it is easy to generate biogas if the shale gas is deposited in deeper depth, then uplifted and suffered air and fresh water leaching, followed by forming the gas accumulation under suitable geological conditions. This study will be helpful for China’s shale gas exploration in the future