For effectively resolving the actual military rely on experience to evaluate equipment support plan, put forward a kind of equipment support scheme evaluation method based on Monte Carlo method, taken the process logic, the guarantee vehicle and the reliability, the influence of such factors as three sets of typical protection scheme for the case analysis, different support vehicles and other support resource allocation to the influence degree of the security work timeliness. The simulation results show that the method can clearly show the advantages and disadvantages of various sets of equipment support scheme.