PROBLEM TO BE SOLVED: To provide culture medium for culturing Lyophllum ulmarium obtained by utilizing sub-standard bean sprouts, beanstalks and the like treated as industrial wastes for part of culture medium for culturing Lyophllum ulmarium so as to ensure the same productivity as conventional one, solve industrial-waste problems becoming an object of public concern, and reduce costs for treating the wastes or load on the natural environment. SOLUTION: The culture medium for culturing Lyophllum ulmarium is mixed with bean sprouts/beanstalks. The culture medium comprises at least sawdust, corn cob meal and bran, and is mixed with bean sprouts/beanstalks. COPYRIGHT: (C)2006,JPO&NCIPI