Ship lock is an important navigation structure in the channel. The capacity of the ship lock restricts the transportation capacity of the channel. Technical improvement of the control system is one of the most effective methods to improve the efficiency of the ship lock. Fuzzy control is an imprecise regulation model established by establishing a rule base and combining a large number of practices and expert experience to determine the membership function. In this paper, fuzzy-PID control is applied to the dual-side gate variable speed follow-up control. The feedback of the opening instrument is used to disturb the flow of the hydraulic system, so as to adjust the opening speed of the gate and form a closed loop control. The simulation and field function tests are carried out. The results show that the system ensures the stability, reliability and adaptability of the control system, the gate operates well synchronously, and the stability and efficiency of ship passing the lock are improved significantly.