A temperature and pressure measurement method is introduced, which is based on a cantilever with single fiber Bragg grating as the sensing element. The non-linear relationship of measurement result between temperature and wavelength is analyzed. Then the linear and nonlinear application scope of reflection wavelength and temperature is given. The linear application scope of wavelength and temperature of bare grating part and pre-strain part is －11.2℃～89℃ and 22.5℃～62.5℃. Linear responds to pressure and temperature are achieved in the measurable ranges. The measured pressure sensitivity coefficient and temperature sensitivity coefficient is 0 nm/N, 0.4082 nm/N, 0.0128 nm/℃ and 0.1346 nm/℃. The result shows that the method is simple and it makes the actual measurement of temperature and pressure facilitated.参考文献原文>Xiao Shaorong, Ben Fulai, Zhu Ping, et al. Design of two-path fiber atmospheric pressure sensor [J]. Chinese Journal of Quantum Electronics (量子电子学报), 2008, 25(5): 634-638 (in Chinese).