By the way of RS,GIS,and the theory of landscape ecology,and on the base of great many data,this paper analysed the status of landscape pattern of Yanchi County.The results indicate that Yanchi's landscape pattern changes significantly during the research phase,the fragmentation and diversity index of entire landscape being on the rise,the dominance index reduced,and the evenness index increased.The pattern shows a varied development tendency of agriculture,forestry and animal husbandry.At the same time,the condition of ecological environment of Yanchi County has been improved step by step.