With the development of anti-radiation weapons, the effectiveness evaluation of anti-radiation weapons has been turned from the simple accuracy index to the integrated countermeasure capability. The research priority is how to access the combat effectiveness of anti-radiation weapons in a complex countermeasure environment. For the present situation of range test of anti-radiation weapons, a combat effectiveness assessment model based on non-linear index aggregation is proposed for anti-radiation weapons. And the corresponding index system model, index aggregation methods, index marking method and index weight determination are given. Finally, the simulation results verify the efficiency and feasibility of the proposed method.