脉冲光纤激光器作为当前国内外激光领域研究的热点之一，其应用越来越广泛。介绍了获取纳秒量级脉冲激光输出的两种典型结构，并基于相应原理分析了各自的关键性技术。概括了国内外该方向的研究进展，提出了有待于解决的若干问题，最后对脉冲光纤激光器的应用和发展前景进行展望。

As one of the research hot spots at home and abroad in the laser field nowadays, the applications of pulsed fiber lasers are becoming more and more extensive. Two typical configurations by which can obtain laser with nanosecond regime pulse duration are introduced and the key technologies of them are analyzed respectively based on the corresponding principles. Research progress at home and abroad in the field is summarized, then some problems to be resolved are put forward. At last the applications and develop prospect of pulsed fiber lasers are also presented.