This paper is aimed to quickly and accurately solve the parameters of photovoltaic(PV)cell model, in which the reference value at the maximum power point of the local shaded PV array is calculated. To address this issue, Gauss Seidel method is used. Based on the local shading conditions in practical engineering, the PV array model is split into a number of new PV array models under uniform light, the latter are supposed to be solved using the data manual of PV cell. The simulation results show that the reference value at the maximum power point of the split PV array model can be solved quickly and accurately by using the Gauss Seidel method. This would demonstrate that the method is suitable to model the output characteristics of PV array under local shading condition and solve its maximum power point value of each peak point.