Abstract: The lightweight SBG inertial navigation system has the characteristics of being small and light, which can be used for the direct and strapdown stabilization of the electro-optical tracking system. In this paper, five inertial stabilization control methods based on the lightweight SBG navigation system in gimbals are studied, and theoretical analysis and experimental validation are performed. The classical position strapdown stabilization technique has limited disturbance suppression capability due to the limitation of position bandwidth, which makes it difficult to meet the requirement of high-precision stabilization. A SBG-based position-rate dual strapdown feedforward stabilization method is proposed, and the decoupling of the strapdown feedforward is achieved by introducing a high-pass filter, which can further improve the perturbation rejection bandwidth as well as the stabilization capability of the system. Theoretical analysis and experimental results show that the SBG-based gyro direct stabilization control method is better at disturbance suppression when the application conditions are not considered, although it is limited by the bandwidth. Under the limitations of platform volume and weight, the proposed SBG-based dual disturbance strapdown stabilization can further improve the system's disturbance rejection capability and obtain better stabilization accuracy.