Abstract:The complex perovskite oxides has rich and complex nature, it has the broad commercial prospect if we can grasps the growth technology and the performance of this type of thin film, thus promote its practical application. The structure of the complex perovskite oxides is introduced in detail, the characteristics and the existent problems of each kind of preparation technologies are discussed for this type of nano-thin films. And base on the existing researches in the domestic and foreign, the performance and application of this type of nano-thin film oxides are summarized in gas sensitive effect, electroconductibility, catalysis, electromagnetism and so on. Finally the forecast to the development of the nano-thin films of complex perovskite oxides is made.

Key words: perovskite; nano-thin films; preparation; performance