提出了一种用于远程多用途导弹的中间段制导律 .该制导律分解为两部分 ,一部分是用在水平导引平面内的制导律 ,另一部分是铅垂导引平面内的制导律 .该中段制导律与末段变结构比例导引律相结合完成整个制导过程 .仿真结果表明该中段制导律能满足末段启控条件 ,使得中、末交班得以顺利完成 . A midcourse guidance law for long-range multipurpose missile is proposed.The guidance law is divided into two parts, one is the guidance law used in the horizontal guide plane and the other is the guidance law in the vertical guidance plane. The mid-level guidance law combined with the final-stage variable structure proportional guidance law completes the entire guidance process, and the simulation results show that the mid-level guidance law can meet the conditions of the final stage of control and make the middle and last delivery smoothly completed.