Intermittent target tracking (ITT) method is proposed based on radar network theory to keep the tracking precision while resisting anti-radiation missile effectively. ITT theory is analyzed first. Then, three relevant evaluation indexes and an improved adaptive sampling algorithm are proposed. Under the same condition, this paper simulated three different target tracking methods, i.e., single radar in ITT, single radar in fixed sampling period tracking and tracking method proposed in the paper. Simulation results show the validity of the method proposed in the paper.