Abstract: How to cooperate the actions among multi platform is one of critical problems in the process of building multi-platform air defense system. In the basic of introducing the important state of the coordination mechanism in multi-platform air defense system,many different kinds of coordination mechanisms were concluded and specified,then the performance and application of these different kinds of coordination mechanisms were analyzed and compared. At last, combining with the different development phases of operation mode, the three different kinds of coordination mechanisms based on target allocation were discussed.

Key words: Command and control, Multi-platform, Cooperative anti air, Coordination mechanism, Target allocation