The invention relates to a key type finger function rehabilitation training device. The device comprises a shell, five finger keys arranged on the outer side of the shell, a pressure collecting and converting unit arranged in the finger keys, a processing unit and an output unit. The processing unit and the output unit are arranged in the shell. The input end of the processing unit is connected with the pressure collecting and converting unit. The output end of the processing unit is connected with the output unit. During usage, five fingers respectively press the five finger keys. The pressure is converted into an electric signal through the pressure collecting and converting unit, and the electric signal is output through the output unit after data processing is performed through the processing unit. Compared with the prior art, the finger rehabilitation training device pays attention to training the ROM of each finger, accurately helps a patient with hand dysfunction to perform rehabilitation training from three aspects of muscle strength, flexibility and coordination according to the display number of the display, and improves the hand function rehabilitation training effect.