Cellulose is an abundant biomass resource with low cost and biodegradable properties

which is one of the most promising green materials. Cellulose

containing a lot of hydroxyl groups on the molecular chain to form strong inter-and intramolecular hydrogen bonding network

is difficult to dissolve in ordinary solvents

and is not easy to process

which greatly limits its wide applications. This paper introduces the research progress of cellulose functional materials from the preparations of cellulose derivatives

graft copolymers and gels. Cellulose-based functional materials

containing various structures and functions

have been prepared through weaken inter- and intramolecular hydrogen bonding in cellulose by chemical modifications

which broadens the application field of cellulose.