The International Joint Laboratory of Low-Carbon Building Environment was approved for establishment by the Ministry of Education in 2023, led by Xi'an University of Architecture and Technology, and jointly established with internationally renowned institutions such as Umeå University in Sweden and Aalto University in Finland. The laboratory focuses on three major directions: low-carbon construction in normal environment (such as attached ventilation theory and low-carbon transmission and distribution technology), safety guarantee in disaster environment (air guarantee theory and key equipment), and intelligentization of underground environment guarantee. It is led by Professor Li Angui, a national-level talent, as the Chinese director. The team has been awarded the 'Huang Danian-style Teacher Team of National Colleges and Universities', and has successively undertaken more than 100 scientific research projects such as the National Key R&D Program. The achievements have been applied to national major projects such as offshore floating nuclear power plants, Xiongan High-speed Railway Station, Xi'an T5 Terminal Building, Zhengzhou Metro Station and the world's largest hydropower project underground super-large complex cavern group. The attached ventilation technology has been selected into the 'National Key Promoted Low-Carbon Technology Catalogue' by five ministries and commissions. The laboratory has hosted many international academic conferences such as ROOMVENT and ISHVAC. The joint laboratory aims to build an important international cooperation platform for scientific research, technological development, talent training and academic exchanges in the field of building environment and underground space environment.