The invention discloses an R-Button game rehabilitation training device for the hand function of old people, which comprises a bandage, an APP module and a hardware part; the hardware part includes: abox body, a pressure key, a pressure sensor, a Bluetooth, a lithium battery and a circuit board; the box body includes a box cover and a main body; the pressure key is installed on the surface of thebox cover, and the pressure sensor, the Bluetooth, the lithium battery and the circuit board are respectively installed in the main body, and the box body is fixed on a human body through the bandage; the APP module functions include: an APP small game, a set task plan, a task schedule, card punching sharing, a ranking list and a training trend report, combined with the corresponding APP small game, the rehabilitation training is finished. The training device is provided with one key and a variety of training modes, the operation is easy and convenient. The problems of boredom and resistancein the training process is solved, by combining the small game and rehabilitation training, the enthusiasm of the old people in the training process is stimulated, so that the old people can easily and actively complete the training.