全国大学生学科竞赛是激发学生学习兴趣，培养学生创新思维，锻炼学生团队协作、提高学生综合素质及增加高校学生交流的重要手段。城市地下空间工程专业于2002年由中南大学首先开办，是一个相对较新的专业，城市地下空间工程专业对应的学科竞赛举办时间也较短，目前仅举行了4届，虽然随着举办届数增加，参赛高校越来越多，但多数高校还没有形成系统的学科竞赛建设模式。为了充分发挥学科竞赛在人才培养中的作用，提高本科生学科竞赛水平，本文以西安建筑科技大学城市地下空间工程专业为例，分析了其学科竞赛的现状，提出依托省重点实验室建立统一管理系统，建议了学科竞赛的建设思路，最后讨论了学科竞赛对教学改革及人才培养的重要意义，以此为契机提高学生参赛水平，提升学科竞赛的影响力，充分发挥学科竞赛在人才培养方面的意义，为学科建设提供有力支撑。

the National College Students' subject competition is an important means to stimulate students' interest in learning, cultivate their innovative thinking, train their teamwork, improve their comprehensive quality and increase their communication. Urban underground space engineering specialty was first established by Central South University in 2002, which is a relatively new specialty. The corresponding discipline competition of urban underground space engineering specialty is also relatively short. At present, only four sessions have been held. Although there are more and more participating colleges and universities with the increase of holding sessions, most universities have not formed a systematic discipline competition construction mode. In order to give full play to the role of discipline competition in talent training and improve the level of undergraduate discipline competition, this paper takes the urban underground space engineering specialty of Xi'an University of architecture and technology as an example, analyzes the current situation of the discipline competition, puts forward the establishment of unified management system relying on Provincial Key Laboratory, and proposes the construction ideas of discipline competition. Finally, it discusses the impact of discipline competition on teaching reform and personnel The significance of talent training, taking this opportunity to improve the level of student participation, enhance the influence of discipline competition, give full play to the significance of discipline competition in talent training, and provide strong support for discipline construction.