Abstract: With the increasing requirement of the control of the pump vibration, the vibration control technologies were deeply studied for various pumps worldwide. Vibration control measures such as floating raft and active vibration isolation have been applied in varying degrees. Based on the requirement of the control of the pump vibration, the technology combining the active and passive vibration reduction (the technology for the vibration isolation by active floating raft) is proposed, which is with the centralized arrangement of pumps and the combination of vibration isolation by floating raft and active vibration isolation. It can isolate the broadband vibration and inhibit the characteristic spectrum.. The feasibility of active floating raft vibration isolation was verified by the analysis of natural frequency and vibration reduction effect. The results show that the active floating raft is with good performance in vibration reduction.