Abstract: Lignin is a renewable resource very abundant in nature.It is one of the key factors which affect utilization of plant cellulose because of its unique structure and complexity.Therefore,it has been a hot research spot to explore how to use ligninase to degrade lignin in lignocellulosic materials,release lignin from package of cellulose and hemicellulose and thus achieve efficient use of cellulose.This review concludes the studies on ligninase and screening of its high-yield strains in order to provide reference for degradation of lignin.