介绍了一种利用光纤表面等离子体波传感器进行折射率测量的方法 ,并利用此方法对环氧树脂复合材料进行固化监测。对不同折射率的溶液进行了测试研究 ,并设计了一种用于折射率测量的光纤传感探头及整套的测试系统 ,用以对固化过程中环氧树脂在不同阶段的折射率变化进行实测。测试结果表明 ,该系统工作稳定、可靠 ,测试结果符合实际情况 A method of measuring the refractive index by using the optical fiber surface plasmon wave sensor is introduced and the epoxy resin composite material is monitored by this method. The different refractive index of the solution were tested and designed for the refractive index measurement and design of a fiber optic sensor probe and the entire test system for the curing process of epoxy resin in different stages of the refractive index change measured . The test results show that the system work is stable and reliable, the test results in line with the actual situation