Abstract: The productivity of shale gas well is influenced by geological and fracturing parameters.It is difficult to predict the gas well productivity through the reliable geological model in the early period of development.Based on shale gas material balance equation and productivity equation, a fast productivity prediction method considering the impact of adsorbed gas and rock elastic energy for shale gas well is established, this method needs less parameters, and it can be used to predict the productivity of shale gas wells at the early stage of development.The calculation example of X1 well in Fuling area shows that the productivity prediction results calculated by the method considering the impact of adsorbed gas and rock elastic energy are accurate and reliable; the adsorbed gas has obvious influence on the accumulated gas production, and the adsorbed gas accounted for about 17% of the total accumulated gas production, and has little influence on the stable production time of the shale gas well with fixed production; the contribution of adsorbed gas will gradually reflect in 2.5 to 4 years, and the production rate of shale gas well with fixed pressure is high in the early period, and the formation pressure decreases quickly, so the contribution of adsorbed gas reflects earlier; considering the influence of elastic energy of rock, the stable production time and accumulated gas of gas well increase, but the influence is not obvious.