A general mobility model that comprehensively considered the temperature, electric field strength and carrier concentration was adopted. The generation of carriers was calculated by using the actual solar spectrum and the absorption coefficient of non-fullerene materials. In combination with the drift diffusion equation and the current continuity equation, the theoretical modeling of high-efficiency organic solar cells was carried out. The current voltage curve, open circuit voltage light intensity curve and short circuit current light intensity curve of the device were calculated using this model. The results show that the current voltage curves calculated by the model are in good agreement with the experimental data, and the other two curves are also in good agreement with the experimental data. In addition, the effect of energy disorder on the device performance was analyzed by using this model. The results show that reducing the energy disorder of materials can improve the performance of organic solar cells.