Abstract: In order to provide scientific basis for the utilization of red tourism resources in Shaoshan, Hunan Province, daily meteorological data from 1988 to 2017 were selected to analyze the variation characteristics of local human comfort index by calculating the guaranteed rate, climatic tendency rate and trend testing and mutation detection of Mann-Kendall test. The results showed that Shaoshan presented comfortable characteristics as a whole, the maximum number was the annual average comfortable days, the second was the cold uncomfortable days, the minimum number was the thermal uncomfortable days, and the days of the cold and hot grades were very few, no extremely hot conditions. However, in the past 30 years, the annual average human comfort index had increased significantly, although the days of annual comfortable day changed little and the number of cold and hot grades days showed a decreasing trend, but the number of cold uncomfortable days decreased significantly, the end date of the corresponding period was significantly ahead of schedule, and the number of thermal uncomfortable days increased significantly, and the end date of the corresponding period was significantly delayed. The mutation detection further showed that in the first ten years of the 21st century, the trend of change of cold and hot discomfort condition was more significant.

Key words: human comfort index, Mann-Kendall test, mutation detection, guaranteed rate, Shaoshan