The FP-PM medical pressure sensor is an embodiment of all the benefits of fiber optics and MEMS technology, designed specifically for medical and research use. It has the characteristics of small size, high precision, good stability, immune to electromagnetic interference, corrosion resistance, and can be used for reliable measurement in harsh environment. It is especially suitable for measuring or monitoring the pressure at specific positions in human or animal body in clinical application, animal experiments and scientific research. Because of its small size, it can easily enter the narrow cavity or integrate with other instruments.