Abstract: In recent years, with the increase of the number of cypresses around the apple orchard in Ansai, the apple rust has been increasing year by year. A large number of fallen leaves and fruits appear in apple trees when rust is serious, which has a serious impact on fruit quality and yield. In order to accurately grasp the occurrence of rust and make timely and accurate prevention and control measures,the author conducted a comprehensive investigation on the occurrence of apple tree rust in the whole region, summarized the characteristics of the occurrence and proposed solutions to provide technical support for the effective prevention and control of apple orchard in Ansai.