With the increasingly expanding and perfecting of the construction and application of the information networking, the cost, technology, security, and management of the information networking are facing big risk and challenge. The thin terminal technology of broadband computer is the information service system based on the C/S system computing platform, which could fully utilize the broadband network technology, with low cost, high efficiency, high security, and easy management, and sufficiently dig the computing function of the server, and effectively solve various risks and challenges in the construction of the information networking.