针对导弹滚动回路半实物仿真中提出的抗干扰问题，通过分析和仿真试验，提出了在采用变增益参数设计的基础上，在角度稳定回路中串联ＰＩ调节器的设计方案。既保证了各特征点上系统具有良好的动态特性，又保证了对常值等效舵偏干扰，滚动角稳态误差为零的要求。 Aiming at the anti-jamming problem proposed in the semi-physical simulation of missile rolling loop, the design scheme of series PI regulator in the angle stabilization loop is proposed based on the variable gain parameter design through analysis and simulation test. It not only ensures the system has good dynamic characteristics at each feature point, but also ensures the steady-state interference to the constant value of the equivalent rudder, the steady-state error of the rolling angle is zero.