The seepage of gas in tight reservoir condition is non-Darcy. There exists threshold pressure gradient during the seepage in tight gas reservoir. Fracturing is an important method to improve the recovery of tight gas reservoir. To improve the prediction accuracy of recovery of tight gas reservoir, with the threshold pressure gradient and the seepage patterns of different well types taken into account, the calculation formulas for the recovery factor of conventional vertical well, fracturing vertical well, conventional horizontal well, and fracturing horizontal well were deduced using the gas reservoir engineering method. The effects of different parameters on tight gas recovery were further discussed relying on X tight gas reservoir. The results showed that the tight gas recovery decreased with the increment of threshold pressure gradient, and the decreasing amplitude of gas recovery of fractured well was obviously smaller than that of conventional well. For the vertical fractured well, the gas recovery increased with the increasing of half-length and there existed an optimum length value. For the horizontal fractured well, the effect of half-length on gas recovery is more sensitive than fracture spacing. There is an optimal well length under a certain drainage area. The field application shows that the new method has a high calculation accuracy satisfying the engineering requirements, which can guide the design optimization of tight gas reservoir.