目的 综述聚对苯撑苯并二唑(PBO)纤维的性能及其表面改性方法的研究进展。方法 从PBO纤维的力学性能、热稳定性、化学稳定性及光稳定性等方面进行简单说明；从化学表面刻蚀、共聚改性、偶联剂处理、等离子体处理、辐射处理及生物载体处理等对PBO纤维表面改性方法进行阐述。结果 PBO纤维性能优异，但纤维表面化学惰性极强，必须对其进行表面改性；各种改性方法各有优缺点。结论 目前的PBO纤维表面改性方法仍然存在较多的不足，有待发现一种环保且高效的改性方法。

The work aims to summarize the research progress of the properties and surface modification method of poly-p-phenylene benzobisthiazole fiber (PBO fiber). The mechanical property, thermal stability, chemical stability and light stability of PBO fiber, etc. were briefly introduced. The surface modification method of PBO fiber was elaborated in such aspects as chemical surface etching, coupling treatment, plasma treatment, radiation treatment and biological carrier treatment. The properties of PBO fibers were excellent, but the surface of PBO fiber needed to be modified because of its extremely strong chemical inertia. Various kinds of modification methods had their respective advantages and disadvantages. Currently, the surface modification method of PBO fiber still has many shortcomings. An environmentally-friendly and efficient modification method is required be found.