大模场光子晶体光纤具有无截止单模运转和大模场面积特性，可以克服由激光功率密度过高引起的非线性效应对高功率系统尤其是超快脉冲系统的限制。近年来它在高功率光纤激光器、高功率光纤放大器、高功率能量传输以及高灵敏度传感器等领域引起广泛关注。回顾了大模场光子晶体光纤的研究历程，从大模场光子晶体光纤的特征参数、结构设计方法和应用热点等方面总结了大模场光子晶体光纤的研究现状，最后对其发展前景进行了展望。

Large mode area (LMA) photonic crystal fibers have characteristis of endlessly single mode and large mode area. These characteristics overcome the limit of high power systems caused by nonlinearity due to the high power density, especially the ultrafast pulse systems. The excellent characteristis of the LMA photonic crystal fibers make them have a subject of enormous interest in areas such as high-power fiber laser, fiber amplifier, high-power energy transmission, and high sensitivity sensor. The research of LMA photonic crystal fiber is reviewed in terms of the characteristic parameters, design methods, applications, and so on. Their development prospects are also discussed.