A helicopter-borne passive location tracking algorithm based on rate of phase difference change is pres-ented aiming at requirements that high location accuracy but also rapid convergence rate is demanded by the heli-copter-borne passive system. The simulation experiment shows that the proposed algorithm possesses high location accuracy not only, but also more rapid convergence rate comparing with traditional location tracking algorithm only by direction. So it can meet the requirement of helicopter operation more well.%针对直升机载无源定位系统不仅要求具有高的定位精度还需具有快的收敛速度，提出了一种基于相位差变化率的直升机载无源定位跟踪算法，仿真实验表明相对于传统的唯方向定位跟踪算法，本文所提的方法不仅定位精度更高，还具有更快的收敛速度，能够更好地适应直升机作战要求。
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