In view of the problem of how to use and deploy the search force in the on-call search method of multi-layered array, the array deploying, array monitoring and the relationship between them are taken into comprehensive consideration.The concept of the maximum controllable bounding array of on-call search is proposed, and its parameter model is constructed.The model for locating the awaiting-airspace/airport is established for the anti-submarine patrol aircraft.The steps of the planning and preparing of on-call search are given, which provides a theoretical and methodological basis for carrying out on-call search with anti-submarine patrol aircraft.