The invention discloses a mechanical finger used for a pulse analyzer. The mechanical finger includes a fixation column, a sensor fixation plate, a pressure sensor and a drive device, wherein the fixation column extends in the vertical direction, the upper end of the fixation column is a fixation end, and the lower end of the fixation column is a free end. The sensor fixation plate is located below the fixation column, the sensor fixation plate has two rotational freedom degrees and can rotate around a first virtual axis and rotate around a second virtual axis intersected with the first virtual axis, the bottom surface of the sensor fixation plate is provided with a sensor installation surface, the pressure sensor is installed on the sensor installation surface, the drive device is installed on the fixation column, and the drive device includes a drive mechanism, a first drive mechanism and a second drive mechanism. According to the mechanical finger used for the pulse analyzer, when the human skin makes contact with a pressure sensing surface, a pressure signal can be obtained, and the drive device controls the pressure sensing surface to be adjusted to a reasonable angle according to the pressure signal, so that a more accurate pulse signal is obtained.