The vibration problem of the helicopter is prominent,and vibration control technology is one of the key technologies in the development of helicopter design.The research progress of helicopter vibration control technology,especially vibration active control technology is reviewed.Firstly,the technical classification of helicopter vibration control development up to now is presented,and the principles of passive vibration control technology for helicopters are briefly introduced.Then,the principle and development of active vibration control technology are emphasized,including active control of structural response,higher harmonic control,individual blade control,active twist rotor control,active trailing flap control,and active control of blade tip and microflaps.Finally,the development direction and future trends of active control technology for helicopter vibration are discussed.