Abstract:In the conventional general limit equilibrium method,the inter-slice forces assumption of Morgenstern-Price is employed and the safety factor is calculated through the safety factor graphs of the moment equilibrium and the forces equilibrium. A new solution method is presented,in which the assumption about the inter-slice forces is discarded;and the calculation method of the safety factor in the conventional general limit equilibrium is not used either. Instead,the inter-slice forces is united with the definition of the safety factor. A mathematical model of slope stability analysis and an effective numerical simulation method are proposed. The feasibility of the new theory and method for numerical solution of general limit equilibrium method is finally verified with several practical examples.