The invention discloses a system for automatically configuring and maintaining a networking computer, which comprises an automatic configuration and maintenance system and managed points, wherein the automatic configuration and maintenance system comprises a management host computer and each managed point comprises a managed host computer. The system is characterized in that each host computer is provided with the following modules: a statistical monitoring module, which is used for copying files remotely, polling the managed host computer and informing and executing a strategy explanation module on the host computer; the strategy explanation module which is used for explaining a strategy appointed by a user and executing operations of the strategy requests; a monitoring service module which is used for copying the files remotely, polling the managed host computer and informing and executing the strategy explanation module on the host computer; and a key generation module which is used for generating a 'public-private' key pair. The system controls all the operations integrally at a source so as to improve the working efficiency, shorten the maintenance period and save the management cost.