Abstract:Basically introducing the system of "native"deep basin gas and the "construction type " tight sand gas tight sandstone gas reservoirs, predict the periods of source rocks of hydrocarbon generation and reservoir compaction in Jixi Basin .And the first time on the type of tight gas sand Jixi basin done to determine. It is concluded that, the source rock condition of tight sandstone gas are both superior, it can generate a large number of hydrocarbon. Both of the reservoir are tight. However, its preservation conditions are poor,it has a large number of developing faults, its tectonic activity is intense,these damage the gas reservoir.Therefore, Jixi basin is difficult to form large areas of deep basin gas, but, in the local economic value of small and medium tight sandstone gas reservoirs can be formed. Finally,by the exhaust strength, porosity, faults and other controlling factors superimposed to predict favorable areas on the distribution of tight sandstone gas reservoirs in Jixi basin.