Cellulose is a very valuable renewable resource。A variety of useful chemical compounds can be produced by the reactions of cellulose。The reactions of cellulose in supercritical water are reviewed。In the absence of a catalyst，the products for cellulose hydrolysis in supercritical water are glucose，fructose and oligomers。The experimental set-up，product distribution as well as mechanism of cellulose hydrolysis in supercritical water are discussed。Using a catalyst such as Ni，Pt，Ru，or KOH，the gasification reaction of cellulose in supercritical water occurred，and the main gas products produced were H2，CO2 and CH4。The hydrogen production processes from cellulose and glucose，which is the main product of cellulose hydrolysis reaction，are introduced。The prospect of cellulose reaction technology in supercritical water is discussed.

Key words: supercritical water, cellulose, conversion, reaction