Abstract: The work principles, classification and performance evaluation indexes of the heat pump technology were introduced. The heat pump technology can be used on reclaiming waste heat of circulating cooling water, heat energy in boiler blowdown water and heat energy of the deaerator exhaust in the power plant. The reasonable utilization of heat pump technology can bring great economic, society and environment benefit. On the basis of work characteristic of the heat pump technology,some proposiations for the heat pump technology application of save energy in power plant were given, which provide certain reference for the such related power plant.

Key words: heat pump, heat pump technology, thermal power plant, energy saving, waste heat