Log in various applications for business users deal with the inconvenience of operating system problems, a novel based on a unified authentication, single sign-on and integration of information enterprise information portal design. After the unified enterprise information portal user authentication and single sign on (SSO) login, map-based user authentication, application in different login system to achieve a single sign. The use of Ajax technology and Web technology achieve cross-domain dynamic languages and non-cross-domain information integration. The application system of north opto-electronic Co., Ltd. shows that the scheme can realize multi-system and cross-domain single sign information integration and integration, greatly improving the convenience of operation.