Xylanase is produced from GJY-08 strain by solid-state fermentation. The influence of fermentation time, the initial pH, the temperature, the ratio of wheat bran to corn stalk, nitrogen sources and inoculation amount of the stain on xylanase production were studied. The optimum conditions of xylanase production from GJY-08 strain are as follows: fermentation time 4 d, the initial pH 4.5, the temperature 30 ℃, the ratio of wheat bran to corn stalk 7∶3, nitrogen sources carbamide, inoculation amount 3 mL, the ratio of culture medium to water 1∶2.