In order to overcome the problems between each different business systems in Beijing Municipal Bureau of Agriculture, such as duplication of work, waste of resources, to meet rapid customization development demand of different GIS application among various business units, to achieve GIS universal applications standard in agriculture, sharing and rapidly set up various agriculture GIS application. We will middleware technology introduction to thinking of bureau of agriculture of Beijing City general development platform for GIS construction. The Platform adopts embedded object technology and seamless docking technology which can quickly achieve sharings among each business systems, avoiding plenty of repetitive work of software development, improving the development efficiency of GIS application in agriculture, reducing cost, shortening the construction cycle of agricultural GIS application system.