It is the first time to use the sensory feedback for multi-DOF prosthetic hand of HIT.The model of picking up EMG signal and distributing of muscle actions is described

the overall work pattern is outlined.It focuses on the experimect of sensory feedback which based on vibration motor after researching on the principle of sensory feedback.Under the premises of function and small space of prosthetic hand

system’s reliablation is reliazed

and signal interference is avoided among the various modules of big system.