Abstract: Huangguan pear has many advantages such as disease resistance, high yield and suitable for planting in Dangshan area,but its early defoliation is serious in recent years. This paper analyzed the production of Huangguan pear in Dangshan region and found that the causes of early leaf fall were varieties, meteorological conditions, cultivation mode, weak tree strength, insufficient attention to control, single control means, long spraying interval, improper selection and combination of pharmaceutical varieties, etc.Based on years of production practice, it was put forward: The measures of eliminating overwintering bacteria source, enhancing tree resistance, optimizing orchard cultivation conditions and rational use of chemical pesticides can effectively prevent the occurrence and harm of early leaf litter disease of Huangguan pear and lay a good foundation for fruit tree production.