Before the aircraft modification operation, the aircraft needs to be jacked up by multiple jacks. Due to the factors such as manual operation and the installation accuracy of components in the hydraulic cylinder of the jack, the positions of both sides are not synchronized in the jacking process. Based on the mathematical models of the hydraulic jack in the process of anti disturbance, the active disturbance rejection synchronization control strategy was adopted,the electric-hydraulic proportional “master-slave” control system simulation model of the double cylinder was built to study the stability of the hydraulic jack in the process of anti disturbance.The simulation results of “master-slave” ADRC model were compared with those of traditional PID control. The results show that the auto disturbance rejection controller can be used to effectively reduce the synchronization error of the master-slave double cylinder, the disturbance in the working condition is compensated, and the accuracy and disturbance rejection ability of the jacking system are improved.