The energy problem is one that every country is paying much more attention to . Now saving energy has becoming more and more important. Some industrial installs release some gas, steam or water that contain some waste heat. If they are released to the nature world , they will make thermal pollution to be environment, which we live in. The two stage lithium bromide absorption heat pump is one kind of absorption heat transformer, which can raise the temperature of the waste heat. The two stage lithium bromide absorption heat pump can be powered by the 70-100℃waste heat, and produce 130-140℃ hot water or steam. It the paper, the two stage lithium bromide absorption heat pump is introduced, its design, performance and efficiency of the heat pump are analyzed , at the end of the paper some conclusions are given out .