The embodiment of the invention discloses a pressure calibrator and a pressure calibration system. The pressure calibrator comprises a calibration handle and a calibration probe which is welded with the calibration handle. The calibration probe is made of bakelite material, and a removable fitting component made of nonmetallic conductive material is adhered at the head end of the calibration probe. The size of the cross section of the fitting component is matched with the size of the cross section of the head part of the calibration probe. With application of the pressure calibrator and the pressure calibration system, the touch display screen of a mobile terminal can be protected when pressure of the mobile terminal is calibrated.