Abstract: Nano-cellulose is a novel macromolecule polymer,with unique molecular structure and excellent properties such as higher respect ratio,rheological character and mechanical strength,which was widely used in food industry. The main aim of this paper was to introduce structure morphology,preparation methods and physicochemical properties( mechanical strength,rheological character and surface activity,etc.) of nano-cellulose( CNF,CMC and BC). Meantime,the application of nano-cellulose in food industry were also reviewed and prospected in this paper.