Ultra-deep Ordovician period in Shuntuoguole space, Tarim Basin, NW China, has advanced oil & gas phases, during which light-weight oil, oil, atmospheric phenomenon and dry gas phases coexistent. The study compares the geochemical characteristics and origin of Ordovician period ultra-deep gas within the North Shuntuoguole (SB) space to it of gas within the Shuntuo (ST), South Shuntuoguole (SN), Gulong (GL), and Gucheng (GC) areas mistreatment gas composition, carbon atom and chemical element atom.