The management of agricultural germplasm resources is a basic work with many links， complex processes and large amount of information. According to the operational procedures and technical specifications for the warehousing and storage of germplasm resources， a set of germplasm resource information management system is required to guide the warehousing and storage process of germplasm resources in a standardized manner， track the inventory of germplasm resources in a timely manner， and manage the property data information of inventory resources. The application of user oriented conceptual data models and methods to the standardization of crop germplasm resource information management， and the reconstruction of data models and the development of crop germplasm resource management systems are of great significance for promoting the integration of germplasm resource information and improving the efficiency of germplasm resource protection and sharing. Aiming at the construction of Shanghai Crop Germplasm Resources Information Management System， this paper introduces the overall design， data specification， data model， business process and system application of the system in detail. The character data module is the biggest improvement of this system， which changes the previous model of separating the physical management of germplasm resources from the data information management of germplasm resources， and puts the physical and data into the same system for management， It is convenient for managers to fully control the physical status and information status system of the resources in this library， realize the sharing of crop germplasm resources in Shanghai， and provide germplasm resource data services and technical support for social related agricultural workers. The purpose is to provide reference for the construction of crop germplasm resource information database.