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This paper proposes a filtering control method of the gimbal rate-servo system in DGMSCMG based on strong tracking filter. Due to the low angle measurement accuracy of the angle measurement device, this signal processing technology can overcome the shortcoming as well as improve the robustness of the controlled plant to the environment disturbance and parameter change. Meanwhile, high accuracy of modeling is not required owing to the advantage of the strong tracking filter. The simulation results verify the effectiveness of the method.