In order to make the airborne optoelectronic stabilized platform system still have strong robustness in complex environments, a mathematical model of the optoelectronic stabilized platform is established. Taking the two-axis four-frame photoelectric pod as the research object, by analyzing the influence of noise interference and changes in its structural parameters on the photoelectric stabilized platform, a design scheme of sliding mode controller based on disturbance observer (DOB) is proposed. Theoretical derivation and simulation results show that: sliding mode variable structure control (SMVSC) is fully adaptable to disturbance torque and perturbation, and has good robustness to system structural parameter changes and external disturbances; it has higher performance than control systems without disturbance observers. Stable a