Abstract: TiO₂ films, TiO₂-ZnO composite films and Ag⁺/TiO₂-ZnO composite films were synthesized by sol-gel process. The crystal phase,size of particles and surface morphology of the film samples were characterized by X-ray diffraction and atomic force microscopy. The effects of annealing temperature,amount of Ag⁺ and treatment method on hydrophilic-lipophilic property on induced Amphilicity of the TiO₂, TiO₂-ZnO and Ag⁺/TiO₂-ZnO films were investigated using H₂O as polarity solution and C₆H₆ as non-polarity solution. The results indicate that Ag⁺ doping appropriately can provide induced Amphilicity,When doped amount of Ag⁺ is 1%,the film of Ag⁺ZnO/TiO₂ film has the best induced Amphilicity. Annealing temperature affect the size of particles,the composition and roughness of films notably,and then lead to a remarkable change in induced Amphilicity of the films. The films annealed at 550℃,treatment with acid or heat and induced Amphilicity of the Ag⁺/TiO₂-ZnO composite films is best. The size of particles is about 21.1 nm. In this best condition,the contact angle is 2°（0.5°）. Ag⁺/TiO₂-ZnO films is the best among pure TiO₂ films,TiO₂-ZnO composite films and Ag⁺/TiO₂-ZnO composite films.