The double carbon goal is the policy guidance and important constraint for the development of all industries in China during the 14th five-year Plan period and beyond. Tourism, as one of the strategic pillar industries, is an important field of carbon emission reduction. Henan, as a major tourism province, with the rapid development of tourism, tourism-related carbon emissions are also increasing year by year. In this paper, the "bottom-up" method was used to measure the carbon emissions of tourism in Henan Province from 2006 to 2020, and the Tapio decoupling model was used to calculate the decoupling level of tourism carbon emissions. It is found that the decoupling relationship between tourism economic development and carbon emissions in Henan Province is mainly weak decoupling, and a variety of decoupling relationships coexist. It is suggested that the green and low-carbon development level of tourism in Henan Province should be improved from the aspects of strengthening government guidance and supervision, optimizing energy consumption structure, encouraging low-carbon technological innovation, developing low-carbon tourism products and guiding tourists' low-carbon consumption.