A smart bracelet for use in reducing hand tremor for a Parkinsons disease patient, comprising a flexible circuit board (1). The flexible circuit board (1) is connected at either extremity to a wristband (2) and to a finger hook (3). Provided on the flexible circuit board (1) are an inertial sensor (13), an electromagnetic vibrator (15), and a microcontroller (14). The inertial sensor (13) and the electromagnetic vibrator (15) are electrically connected to the microcontroller (14). The wristband (2) is provided with a pulse electrode (21). The pulse electrode (21) is electrically connected to the microcontroller (14). The pulse electrode (21) is used for generating an electric stimulating pulse to be transmitted to the radial nerve of either hand of the Parkinsons disease patient. The inertial sensor (13) is used for sensing a tremor signal of the corresponding hand of the Parkinsons disease patient. The microcontroller (14) is used for driving, on the basis of the tremor signal, the electromagnetic vibrator (15) to generate reverse tremor to cancel out the hand tremor of the Parkinsons disease patient. The smart bracelet is capable of reducing the impact of inconvenient upper extremity motion as a result of hand tremor for the Parkinsons disease, increases the activeness of upper extremity motion of the Parkinsons disease patient, and achieves the effect of aiding and promoting the rehabilitation of the Parkinsons disease patient.Linvention concerne également un bracelet intelligent destiné à être utilisé pour réduire les tremblements de main pour un patient atteint de la maladie de Parkinson, comprenant une carte de circuit imprimé souple (1). La carte de circuit souple (1) est reliée à chaque extrémité à un bracelet (2) et à un crochet de doigt (3). Sur la carte de circuit souple (1) sont disposés un capteur inertiel (13), un vibreur électromagnétique (15), et un microcontrôleur (14). Le capteur inertiel (13) et le vibreur électromagnétique (15) sont électriquemen