The principles and characteristics of several major optical fiber sensors which have a good prospect in the radiation environment are introduced. Based on the preliminary experimental results obtained by Brillouin sensor, the radiation effects on performance of several fiber optic sensors, such as optical fiber Bragg grating sensors, Fabry-Perot fiber optic sensors, distributed fiber optic sensors and transmission fiber, have been described. Several different points are briefly analyzed, and the prospects of different fiber optic sensors in the radiation environment are presented respectively.