A rice variety identification system is developed,which the business based on network and non-paper firstly is implemented. The structure of system is built based on the model of component-based three-tier topology structure and struts framework. The system model is constructed with the workflow technology and UML methods. To solve the problem of identity certification etc., the system compares the login information input with the name and identity card of database. The mechanism of security is constituted on the rule of role-based access control, form-based authentication, MD5code of encryption class and code-accessed trust policy.