For the munition roll channel with strong nonlinearity, parameter uncertainty and susceptibility to external disturbances, this paper proposes a munition roll angle rate control method based on the fully-actuated systems theory (FAST). Considering the dynamic characteristics of actuator fault failures, a mathematical model for the roll channel of munition with the practical actuator is established. The uncertain and disturbance terms in the system are treated as external disturbances, and the feedback and compensation controllers are designed. Simulation comparisons are conducted considering actuator failures with different roll angel rates, accelerations, and actuator failure coefficients, the robustness and effectiveness of the designed control method are verified.