以火箭弹的六自由度运动方程为基础，建立了计算散布的优化模型。采用阶梯型推力加速度、等减速旋转法和尾翼延时张开等方案来减小火箭弹的散布。利用优化方法对影响阶梯型推力加速度、等减速旋转法和尾翼延时张开等重要参数进行了优化设计，计算结果表明这是一种减小火箭弹散布的有效途径。 Based on the six degrees of freedom rocket equations of motion, an optimization model for calculating scatter was established. The use of ladder-type thrust acceleration, deceleration and other methods of rotation and tail delay open programs to reduce the distribution of rockets. The optimization method is used to optimize the important parameters that affect the thrust acceleration, the equivalent deceleration method and the delay time of the tail fin. The calculation results show that this method is an effective way to reduce the dispersion of the rocket projectile.