Abstract：The effects and types of the supports and immobilization methods of the supported TiO2 photocatalyst are reviewed．The influencing factors on the photocatalytic activity of the supported TiO2 are discussed．The problems in practical application and the developing trends of the supported TiO2 have also been pointed out briefly．The methods f0r looking f0r excellent carriers are put forward．Continuing research direction is to raise durable property and repitition，and to design high—eficiency photocatalysis reactor．