首次将ImageJ图像处理软件应用到泥石流固体颗粒的分析中,通过对固体颗粒边缘的识别,实现对沟道粗化层块石粒径的快速自动提取.以白龙江流域构林坪泥石流沟为例,使用该软件对构林坪沟沟道固体颗粒粒径和圆度进行计算,并对提取结果进行检验,结果表明ImageJ软件对固体颗粒粒径及圆度提取效果较好,可以为泥石流基础数据勘察提供新的技术与支持. For the first time, the ImageJ image processing software was applied to the analysis of debris flow solid particles, and the rapid and automatic extraction of the cobblestone particle size was realized by identifying the edge of the solid particles.Based on the analysis of debris flow ditches in the Bailongjiang River basin, The software was used to calculate the grain size and roundness of the solid particles in the Grove Ridge trench and to test the extraction results. The results show that the ImageJ software has a good extraction effect on the solid particle size and roundness, Provide new technology and support.