Depending on high precision and feasibility,GPS is usually applied in slope stability analysis. Whereas,the coordinates measured by GPS need be transformed if they are applied in slope stability analysis. Considering impact of earthquake motion,the program basing on Swedish slice method was carried out by using Visual Basic 6. 0 programming. The calculation results were verified by practical program and the results showed that calculation results obtained by program proposed were feasible and coordinated well with results obtained by Swedish slice method.