本文就段位编号法，尤其是五段编法的形式、特点、应用及其意义，进行了较为详尽的论述。作者在消化吸收了国外先进经验的同时，结合我国企业产品编号的实际情况，探索出一种新颖、实用的编号形式。它集中了隶属编号法和分类编号法的优点，是一种完全崭新的编号方法。段位编号法，适合现代科学管理，尤其适应计算机管理模式。它有强大的生命力和广泛的推广应用价值。 In this paper, a detailed exposition is given on the form, characteristics, application and significance of the segment numbering method, especially the five-segmentation method. While digesting and absorbing advanced foreign experience, the author has combined with the actual situation of China’s enterprise product number to explore a novel and practical numbering form. It concentrates the advantages of subordinate numbering and classification numbering, and is a completely new numbering method. Segment numbering method is suitable for modern scientific management, especially for computer management mode. It has a strong vitality and a wide range of popularization and application value.