The invention belongs to the technical field of ground foundation engineering and relates to a method for testing end resistance of an end open type PHC pipe pile. A self-compensating fiber grating soil pressure sensor is installed at the pile end, the variation of the center wavelength of a fiber grating is measured by using a fiber grating demodulator, and then the resistance of the pile end iscalculated. A process is simple and convenient, and an adopted device is simple in structure, convenient to install and operate and low in fabricating cost, does not damage easily, is high in testingprecision and operability, can perform real-time monitoring and long-term monitoring, is widely applied and can also be applied to precast piles of other types.