Common service software implementing DHCP protocol lacks the network-access authentication, which makes DHCP network insecure, and to overcome this shortcoming and ensure the success of terminal and security of access, it has to deploy additional commercial software. However, these software need some plug-ins’ support, and any one of these plug-ins is not qualified because of heterogeneity of network and terminal. To meet demands of diverse-terminal heterogeneous-network secure access, a self-management access system was designed which provides authentication function based on dynamic MAC address binding. Besides, this system provides a self-management module which has a vital function for registering and managing MAC address and querying network-access records, and a DHCP-configure file module which aims to dynamically generate and conveniently manage DHCP-Server configuration file. It is flexible and ease-configure without any plug-in.