Abstract: Twenty seven species of symbiotic mycorrhiza fungi with Masson pine have been preliminarily found out by means of investigation in the pine forests and identification in the lab, among which 19 are new records and a catalog (1) of their names has been listed. Masson Pine belongs to a form of ectophic mycorrhiza, and is a host which can widely admit various mycorrhiza fungi. All of the mycorrhizas which established by the way of an associated relationship between the trees and many kinds of the fungi have their typical morphological structures, that is, 'the fungal mantles' and'the hartig net'.