Abstract: To promote the application of the precise and quantitative cultivation technique of seedling broadcasting of rice in production, by means of collecting data, building decision model and designing procedure, taking Jiangyan City as an example, based on Visual Basic 6.0 and MapObjects 2.3, the study had developed the Decision Support System V1.0 of the precise and quantitative cultivation of seedling broadcasting of rice. It turned out that, the system had achieved the desired goal which covered many aspects such as E-map navigation, basic data query, decision support, knowledge lands, assistant tool and system help, and had the characteristics of friendly interface, easy and simple to handle, full function and strong application. By practice, the system was useable and dependable, easy to use, and had high customer satisfaction. It could be used as a high-quality informationize aided platform of the precise and quantitative cultivation technique of seedling broadcasting of rice to promote and apply it in production.