There are many problems in present anti-stealth detection technologies, such as small detection range and excessive detection blind zone. Besides, the stealth target is difficult to be detected and tracked with current technology. To solve these problems, this paper presents a novel anti-stealth method that is based on the thought of swarm and makes use of the more flexible airborne platform to generate and change formation configuration. First, the cooperative anti-stealth airspace coverage model of aircraft swarm is established, and an improved airspace coverage solution method is proposed. Second, four evaluation indexes and effective detection airspace are defined, meanwhile, the optimization objective function is obtained by using the weighted sum. Third, based on the study of the one transmitter and one receiver configuration, we optimize the 1TnR spatial configuration by using the rule-searching strategy and particle swarm optimization algorithm. Finally, the effectiveness of the proposed model and the feasibility of the algorithm are verified by simulation examples.