Using three-point deconvolution calculation principle, the authors analyzed responsiveness of characteristic parameter α, calculation features of the cell layer, and the causes for appearance of negative values in the anomaly section. The authors hold that, in the quantitative interpretation of γ logging data for the granite-type uranium deposit, it is relatively reasonable to choose the value 0.1 of characteristic parameter α for calculating the ore bed thickness and uranium content, which can remarkably simplify the calculation process.