Abstract: Bacterial cellulose has some excellent food characteristics,such as low energy,high mechanical strength,high water holding capacity,low solid content and high colloidal strength,ultra-fine fiber network and good taste. It has been widely used in food fields. In this paper,the research progress on biosynthesis pathway,biosynthesis regulation mode,secretion,assembly,crystallization process and application in food industry as raw materials,food additives and packaging materials of bacterial cellulose are reviewed.