Based on Carbon Footprint model, we calculated the tourism carbon footprint and tourism carbon capacity of Gansu Province in 2019 and 2020. The results indicate that: 1. Tourism carbon deficit is  in 2019 and  in 2020, which indicates a negative impact on ecosystem.  2.The number of tourists in 2020 is lower than 2019. Therefore, the tourism carbon footprint in 2020 was reduced compared to 2019. 3.From the information in this study, indicate the tourism industry in Gansu Province is unsustainable.