As a basic link to support the cultivation of talents in colleges and universities, the construction of curriculum system has attracted the attention of many colleges and universities, and the construction of postgraduate curriculum system is the key. Under the background of new engineering construction, the discipline of bridge and tunnel engineering in Harbin Institute of Technology actively explored the curriculum reform and knowledge system renewal, and carried out the curriculum system reform. In this paper, through the overall analysis of the latest development trend of bridge and tunnel engineering industry, combined with the actual situation of the training of graduate students in this discipline, this paper puts forward six core competencies that graduate students in bridge and tunnel engineering should possess, and on this basis, determines the overall goal orientation of the curriculum system reform. By summarizing the long-standing shortcomings of the original curriculum system, we mainly learn from the training programs and curriculum systems of Tongji University, Southeast University, Hunan University and other key universities in the industry. Combined with the actual school-running situation of the bridge and tunnel engineering discipline of Harbin Institute of Technology, students ' suggestions are widely listened to, and scientific and reasonable curriculum system reform is carried out from the perspectives of overall curriculum module and specific curriculum content. In the reform of the core course module of the discipline, adhere to the principle of self-reliance and characteristic school running, ensure that graduate students can consolidate basic knowledge, enhance professional ability, and highlight the advantages of the discipline. In the reform of elective modules, adhere to the principle of resource integration, leading the direction, based on the traditional direction, open up new directions, and cross-integration with related disciplines. The reformed curriculum system provides better courses and more reasonable training programs for postgraduates. Finally, continue to improve on the existing reform program, pointing out the direction that still needs to be worked on in the future curriculum system construction.