Abstract: To find out the species, distribution and reserves of medicinal Ganoderma ssp.in tropical, in order to provide scientific basis for the exploitation of Ganoderma ssp. rexources, we collected large number of Ganoderma ssp., class fying and identifying them according to their imcroscopic structure and macroscopic features.The result showed that there were16 kinds of species distributed in Hainan of China, which showed that Hainan was the area with most richful medicinal Ganoderma ssp. in the country.