Abstract: Taking six key cities in Wuling Mountain Area as the research object,this paper proposes a healthy city construction evaluation index system composed of five subsystems (including 21 indexes) of economy,society,environment,culture and medical treatment,determines the index weight by using the entropy weight method,and analyzes the spatial-temporal changes of healthy city construction by using the comprehensive index method and ArcGIS software.The results show that the comprehensive index of Huaihua City in healthy city construction of ranks the highest among the six key cities in 2010,2015 and 2020,followed by Jishou City,Qianjiang District,Tongren City,Zhangjiajie City and Enshi City.In terms of temporal dimension,the ranking of Tongren City has been greatly improved.The ranking Enshi City has always been in the low.The ranking of Zhangjiajie City declined at first and then rebounded.The ranking of Jishou City and Huaihua City has always been stable in the top three,and the ranking of Qianjiang District has always been in the middle.In terms of spatial dimension,the construction level of the five subsystems of economy,society,environment,culture and medical treatment is slightly different.The overall pattern has changed from "low in the northwest and high in the Southeast" to "low in the north and high in the South",and finally to "low in the northeast and high in the southwest" .In order to promote the high-quality development of the key cities in Wuling mountain area,according to the spatio-temporal change results of the healthy city construction of the six key cities,suggestions are put forward to improve the healthy city construction level of each city from the five aspects of economy,society,environment,culture and medical treatment.

Key words: healthy city, Wuling Mountain area, temporal and spatial change, entropy weight method, ArcGIS analysis