在刑事案件现场上，经常可以得到一些微量纤维的检材。对微量纤维种类和其上染料的分析，能提供侦破案件所需的依据。染料的测定方法据报道有［１－４］，但用液相色谱法测定还原染料目前尚未见报道。本文用正交实验的方法，选择液相色谱的流动相条件，测定了１６种不同还原染 In the criminal cases on the scene, you can often get some trace fiber testing. The analysis of the types of microfibers and their dyes can provide the basis for detection of the case. Dye determination methods have been reported [1-4], but the use of liquid chromatography vat dye has not been reported. In this paper, the orthogonal experiment method, the choice of liquid chromatography mobile phase conditions, determination of 16 different reduction dye