To achieve carbon neutrality and promote the sustainable development of hotels,it is very important to study the differences of hotel practitioners'low-carbon cognition and behav-ior.The principal component analysis,coupling coordination degree,paired sample T-test and geographic detector were used to study the differences and influencing factors of low-carbon cognition and behavior of hotel practitioners in Wutai Mountain Scenic Spot.The results showed that:(1)The low-carbon cognition and behavior of hotel practitioners involved six di-mensions:low-carbon diet,low-carbon accommodation,low-carbon management,low-carbon cycle,low-carbon service and low-carbon supply.The influencing factors included seven fac-tors:man-land view,climate change view,carbon neutrality knowledge and mode,ecological culture,low-carbon service cost,low-carbon social atmosphere and policy,low-carbon facilities and conditions.(2)According to star-rated of hotel,the hotel practitioners were divided into four groups:five-star,four-star,three-star,below three-star and homestay practitioner.The level of cognition showed a gradual decline.(3)There were significant differences in the low-carbon cognition and behavior of hotel practitioners.In terms of low-carbon cognition,the four groups were all lagging behind in the cognition of low-carbon diet,while in terms of low-carbon be-havior,they were lagging behind in the behavior of low-carbon supply,low-carbon accommoda-tion,low-carbon management,low-carbon cycle and low-carbon service.(4)According to the difference of coupling coordination,the practitioners of five-star had intermediate coordination in the dimensions of low-carbon accommodation,cycle and supply,while the dominant factors were the man-land view,low-carbon facilities and conditions.The practitioners of four-star were the primary coordination in supply dimension,while the intermediate coordination were accommodation and cycle dimension.The main driving force was low-carbon facilities and conditions,costs of low-carbon service,carbon neutrality knowledge and mode.The practitio-ners of three-star were primary coordination on supply dimension,while the dimensions of ac-commodation and cycle were intermediate coordination.The main factors were ecological cul-ture,carbon neutrality knowledge and mode.The practitioners below three-star and homestay were primary coordination in the dimensions of cycle and supply.The main influencing factors were costs of low-carbon service,low-carbon social atmosphere and policy.