To recognize the contact received by anti-submarine patrol aircraft in search using sonobuoys, the model was set up for contacting situation analysis of the sonobuoy array.Based on this model, two kinds of methods for contacting recognition with the aid of sonobuoys were given.The principles and requirements for deploying the intercepting-mode sonobuoy array were put forward, and the deterministic model for the sonobuoy array deployment was built.Practical conclusions were drawn through simulation calculation, which supplied a theoretical and methodological basis for practical operations.