Having the advantages of broad-spectrum antibacterial property

biocompatibility

biodegradability

non-toxicity and no immunogenicity

chitosan has good application prospects in medical materials

oral medicine and traditional Chinese medicine.It aims at promoting the application of chitosan in medical and pharmaceutical areas by reviewing the researches of chitosan in these areas;and more derivatives are being developed with the intensive study

more new materials will be developed

which will promote the development of medical and pharmaceutical industries.The emphasis of this paper was put on the introduction to the preparation

properties and application situations of chitosan in these areas such as medical materials

oral medicine and traditional Chinese medicine

an empirical basis for the expansion of the scope of application of chitosan in medical field is created.