In recent years, with the continuous improvement in the economic conditions of our people, people pay more and more attention to the spiritual aspect of consumption. Therefore, tourism has developed by leaps and bounds, and the tourism economy has become an important form of economic growth in China. However, as the global climate continues to deteriorate, people have begun to seek a sustainable development path, and the concept of low carbon tourism has been put forward, which requires hotels to make certain changes in their management mode in order to adapt to the concept of low carbon tourism in the new era. Since carbon trading is an important means for the promotion of carbon dioxide emission reduction, this paper explores the emission reduction effect and transmission mechanism of the carbon trading pilot through a spatial double difference model based on the study of spatial characteristics. The experiment shows that carbon trading not only effectively promotes local CO2 emission reduction, but also has a certain spillover effect on the surrounding areas. In addition, carbon trading can promote the economic growth of the pilot areas and the neighboring regions, and drive CO2 emission reduction at the same time. The paper concludes with an analysis of how to strengthen policy and behavioral guidance, improve government regulatory mechanisms, reduce environmental pollution in hotel tourism, and ensure that the model of hotel management meets the needs of the industry from the perspective of low carbon tourism under the situation of information symmetry and asymmetry.