As open pit mine area is generally far away from the city and affected by transportation andother facts，so that the maintenance of equipment in the truck dispatch system is very inconvenient. The remote management and maintenance of the internal device were realized by the means of SSLVPN，which connected the remote network to the system of internal network. Doing these can not only be facilitated for management and reduce maintenance costs，but also meet the needs of the mobile of-fice.