The vibration in the hoisting process of the offshore fan has a direct influence on its working stability.In order to reduce vibration in hoisting process,a hydraulic vibration absorber based on quasizero stiffness theory was built with Simulink,and ordinary PID,fuzzy PID and adaptive controller were added.At the same time,the system without controller was introduced to compare and analyze the performance of the vibration absorber under different controllers.The results show that the hydraulic vibration absorber can effectively reduce vibration.Under the fuzzy PID control,the response of the system is faster,the overshoot is smaller and the stability is better.