With the rapid development of underground space technology, higher requirements have been put forward for the core course teaching and talent training of Urban Underground Space Engineering Major (UUSEM) at the present stage. The pain points such as curriculum teaching content does not keep pace with the times, practical teaching methods are old-fashioned, classroom teaching methods are single, and curriculum ideology and politics are floating on the surface gradually appear. This paper takes "Underground Structures" as an example to explore and implement the teaching mode. The new concept of dynamic reshaping teaching content of "keeping up with the forefront of science and technology, dynamically updating cases, and real-time interpreting norms" was condensed, the practical teaching mode of "indoor model+3D simulation+on-site practice" with the participation of "course enterprise tutor" was established, the whole process blended teaching method including "before+during+ after "class was proposed, and the "case-type" course ideological and political method and course ideological and political case database were constructed. Through continuous innovation, remarkable results have been achieved in teaching effect, personnel training, ideological and political education, and the relevant teaching results have been promoted and applied by other courses and brother colleges.