Abstract: The energy-efficient data center problem has been paid attention more and more, this article proposes some technologies to realize energy-saving, based on the current development situation of dala center energy-saving. Using these ways, it not only can save great of electric power changes and extent equipments life, but also can decrease the environment influence cased
by data center consuming. It helps enterprises to establish image.

Key words: data center, energysaving, refrigeration, virtualization, server