甲壳素酶能专一性降解甲壳素，具有抗菌、抗虫等作用，在农业、蓄牧业和工业上具有广阔的应用前景。文中对近年来甲壳素酶的研究成果进行综述。主要从甲壳素酶的来源、分类、分子生物学研究、固定化以及在农业、蓄牧业的应用来进行阐述，并探讨了甲壳素酶今后的研究方向。

Chitinase can specifically degrade chitin and thus has antibacterial function and insect resistance. It has broad application prospects in agriculture, animal husbandry and industry. The research results of chitinase in recent years were reviewed herein, especially the sources of chitinase, classification, molecular biology research, immobilization and application in agricultural and animal husbandry. Furthermore, the future research direction of chitinase was also discussed.