比较分析了断口定量测算的各种方法，重点介绍体视学技术在定量断口学中的应用，例举了以立体对断口照片，按照体视学原理进行测算断口三维几何尺寸、求剖面截线及断口分维数的实验结果。 The various methods of quantitative measurement of fracture are comparatively analyzed. The application of stereology technique in quantitative fracture science is mainly introduced. Three-dimensional fracture images are taken for example. According to stereological principle, And fracture fractal dimension of the experimental results.