本文就弧翼的安装角偏差、同向上反角,反向上反角及弧翼的尺寸偏差等对气动力的影响问题,进行了分析和推导.建立了为保证弹体气动性能要求所需要的弧翼各种偏差公式.并讨论了有关偏差分配的处理方法.从而,从空气动力学方面,为弧翼的设计和加工、装配提供了依据,以期达到提高导弹和火箭弹命中精度的目的. This paper analyzes and deduces the influence of the aerodynamic forces on the aerodynamic forces, such as the deviation of the installation angle of the arc wing, the opposite angle to the upper one, the reverse one on the opposite one, and the dimensional deviation of the arc wing, etc. The requirements for aerodynamic performance of the projectile are established Arc deviation formula and discussed the method of deviation distribution.Therefore, from the aerodynamics aspect, provide the basis for arc wing design, processing and assembly, in order to achieve the purpose of improving missile and rocket missile hit accuracy.