Lithium Ion Phasphate Battery has some outstanding advantages, such as high energy density, long cycle life, environment friendly and so on, in this way it is widely used in power tools. Li(NiCoMn)O2, LiFePO4 and LiMn2O4 were three kinds of cathode materials mainly used in high Power Tool Battery. However, safety, high rate performance in the low temperature and matching group technology should be further improved. The extensive application of high safety lithium ion batteries in power tool, high power lithium ion batteries with widely operated temperature range and the optimization of matching group technology will be the future developing hotspots.