The uncertainty in air attack is a challenge to the generation of the optimization scheme in area air-defense operation disposition, and each situation of air attack corresponds with one optimum disposition scheme. In order to synthesize the optimum schemes under conditionsof every air attack to obtain the optimum seeking methods suitable for various different situations of air attack, optimal disposition schemes under each and every type of air attack are regarded as the ideal point, and by defining the concept of similarity degree between disposition schemes, the evaluated function is established. At last, the problem is transferred into one single object programming problem, and a disposition optimization method for area air-defense operation is proposed based on ideal point . The instance analysis indicates that this method is feasible and effective.