There are many factors influencing the efficiency of traditional weather modification operation, such as airplane performance, and the air space partition and application. The optimized design of air space partition for airplane seeding is proposed, through synthetically considering the borders of military air space control, the civilian airline corridor, the distribution of cloud vapor sources, and the alpine terrain. The evaluation model of airplane seeding based on safety, effect, and partition is set up, and the precipitation potential of cloud seeding is also studied. The procedures of the managing model, include seeding applying, seeding decision, seeding directing， and seeding bulletin is described, and the managing platform is devised. The modules of the air space partition for grid seeding, the effect evaluation of airplane seeding, and the managing bulletin creating in the model are validated and corrected in the seeding application. The effective allocation of resources for airplane seeding can be accomplished according to the model.