Abstract: In order to respond to the call for digitization and intellectualization in higher education during this new era, and to solve the issues of scattered knowledge points, fragmented knowledge and lack of systematic integration in traditional teaching methods, an integrated development practice for major courses in solid mechanics is carried out in this paper. The barrier between these major courses is broken, and an organic connection as well as deep integration of knowledge points is realized. A comprehensive construction plan is developed, including curriculum summarization, division of knowledge layers, condensation of knowledge points, correlation of knowledge elements and intelligent retrieval for major courses such as material mechanics, elastic mechanics, and plastic mechanics. The knowledge graph of the solid mechanics major courses is established, and the organic integration of the knowledge system of solid mechanics is also facilitated. The knowledge graph aims to organically integrate the major courses in solid mechanics, rationally divide the knowledge levels, innovate the framework of knowledge points, expand the depth of knowledge elements, form a deep-linked and multi-chain network of knowledge, and realize the integrated construction of the core courses in solid mechanics.