This paper studied a convenient and efficient network situations personalized access authentication mechanisms. It uses the tripartite framework of requester, authenticator and authentication server based on IEEE802.1X standards. It analyzes the EAP protocol, compares the EAP-MD5, EAP-TLS, EAP-SIM, EAP-PEAP and chooses the EAP-PEAP authentication method. Then it gives the detailed design of the authentication process with system and user personalization.