Abstract: The preparation of high purity and ultrafine BaTiO 3 powders by liquid phase methalw as rev iewed with 12 references. This method has the characteristic of small pellet high purity and low sintering temperature.Among them has Alkoxide hydrolytic decomposition a better applied prospect if the problems such as Alkoxide-hydrolytic control dose, the rate of separating out titanox-barium head precursor are solved.