A tow-stage VAR optimization model is presented in this paper.First.the optimal solution is quickly solved by VAR classic method,which only considers the limitaryconditions of Reactive Power and reactiue power equation and yet linear increment model based onsensitivity is set up and linear programnung is employed to correct the overlimit varlables,Theoptimal resnlts in the tirst stdge are corrected to be feasible.The proposed method has beensuccessful in the sample systems and reai systems.