Aiming at the interference problem between radar jamming equipment and air defense radar in the cooperative operation of air defense forces and electronic countermeasure forces, the cooperative methods are analyzed based on the frequency, time and airspace. 3 methods are used synthetically to analyze and calculate of the typical example. The results of the example show that the operational coordination of air defense radar and radar jamming equipment on the basis of the realization of electromagnetic compatibility give full play to their operational capabilities.