In order to improve the fabrication efficiency of micro fiber pressure sensors, an optical fiber sensor based on Fabry-Perot (F-P) interferometer fabricated by using 157 nm laser micromachining is proposed and demonstrated. The sensor head consists of a short air F-P cavity near the tip of a single-mode fiber and the fiber tip. Tracking the phase signal, the variation of pressure can be obtained. In the pressure measurement range of 0~60 MPa, the sensitivity and long-term stability of the sensor are 0.01 rad/MPa and ±0.04 MPa, respectively. For ten sensor samples tested, the tolerance of sensitivity of the sensors for 60 MPa measurement range is ±5%. This sensor has great potential to realize mass-production of good reproducibility and the application prospect in industry measurement is wonderful.