Xylanases have drawn attention widely in recent years as they play important roles in food, feed, and paper industry. Efforts on costs reduction of xylanase preparations have been directed towards increasing enzyme production by developing better microbial strains, suitable xylanase inducers and efficient fermentation techniques. Thus many microbes which can produce xylanases directly on lignocellulose have been selected. The research status of xylanase-producing microorganisms from lignocellulose materials available was reviewed in this paper.