A digital orchard management system (DOMS) plays an important role in implement orchard precision management. With single fruit tree as minimum management unit and rich internet application (RIA) as framework, DOMS structure was established using WebGIS application service provided by ArcGIS Server. Data table and entity relationship was designed. The function of DOMS was implemented with ExtJS. An apple orchard in Shandong province was selected for applying DOMS. An orchard map was created by recording the coordinate location of fruit trees and environment monitoring equipments in the apple orchard. Integrating with the map, various entities such as orchard, fruit trees, and equipments and so on were managed with DOMS. The application result shows that DOMS can improve management efficiency, enhance analysis capacity and provide visualization management means. It is a new attempt that information technology is applied in orchard management.