Ganoderic acid Sz, ganoderic acid Y and ganoderal A were isolated from the methanolic extract of the fruit body of Ganoderma australe. The structures of these compounds were completely elucidated by using a combination of 1D- NMR (1H-, 13C-NMR, DEPT) and 2D NMR (COSY, NOESY, HMQC, HMBC) analyses.