The invention discloses a finger joint tremor suppression device based on magnetorheological fluid, which comprises a signal collection unit, a signal processing device, a soft glove, a sealing port, a magnetic field generating device, a magnetorheological fluid, an outer layer of a soft glove, and an inner layer of a soft glove Floor. The beneficial effects of the present invention are: by measuring the tremor signals of each knuckle and phalanx of the hand, respectively controlling the magnetic field generating devices at the corresponding knuckles, and then generating different magnetic field strengths to realize the precise anti-tremor control of each knuckle, targeted Realize anti-shock of patient's fingers; use magnetorheological fluid control to replace traditional mechanical equipment control, simplify the overall structure and reduce energy consumption; use magnetically isolated skin-friendly soft materials to avoid magnetic field distribution between magnetorheological fluid areas In addition, the magnetic field intensity at the finger and phalanx is effectively improved, and the wearing comfort of the patient is also improved.