Objective: To study the chemical constituents from the sporophore of Laetiporus montanus. Method: The chemical constituents were separated and purified by chromatographic methods after solvent extraction and were identified by spectroscopic analyses (MS and NMR). Result: Eleven compounds were isolated from chloroform extracts and ethyl acetate extracts in the sporophore of L. montanus and were identified as ergosterol peroxide (1)

ergosta-7

22-dien-3β-ol (2)

cerevisterol (3)

ergosterol (4)

ergosta-7

22-dien-3-one (5)

fomefficinic acid A (6)

sulphurenic acid (7)

(4E

8E)-N-D-2'-hydroxypalmitoyl-1-O-β-D-glycolpyranosyl-9-methyl-4

8-sphingadienine (8)

N-(2'-hydroxytetracosyl)-1

3

4-trihydroxy-2-amino-octadecane (9)

nicotinic acid (10) and eburicoic acid (11). Conclusion: The compounds 3

5

6

8-10 are separated from this fungus for the first time.