Relying on the campus cultural environment to promote China's carbon peaking and carbon neutralization (double carbon) process is one of the important ways to achieve China's 'double carbon' goal. Based on the systematic investigation of a university directly under a province in the South and the interview results of 563 school personnel, this paper analyzes the shortcomings of the school in the construction of cultural 'soft environment' such as school spirit, teaching style, study style, innovation and entrepreneurship and cultural 'hard environment' objectively carrying cultural ideas. The results show that the school has not fully integrated the concept of 'double carbon' into the teaching system at the level of 'soft environment' of campus culture, and the depth of the integration of the concept of carbon neutralization with current education and practice needs to be further improved. In the dimension of 'hard environment' of cultural externalization, with reference to Li Kenong's five-level scale method, from the green space system, the systematic research is carried out in five dimensions such as green building. Based on the research results, the framework and ideas of building a 'soft culture' environment is innovatively put forward, which includes an education and training system, a scientific research innovation system and a self-organizing management system for teachers and students, as well as the optimization and improvement measures of the 'hard environment' of campus culture with 'environmental education and cultural immersion' as the core. It has a certain practical reference value for enhancing the appeal and penetration of the 'double carbon' cultural concept in the group of teachers and students, and helps to promote the realization process of the 'double carbon' goal of domestic universities.