To investigate chemical constituents from Radix Pittospori, chloroform extract of the roots was subjected to column chromatography with various chromatographic techniques.  The structures were elucidated on the basis of physico-chemical property and spectral analysis.  Two triterpenoids were identified as 22-acetyl- 21-(2-acetoxy-2-methylbutanoyl)-R₁-barrigenol (1) and 3α-hydroxyl-20-demethylisoaleuritolic-14 (15)-ene-28, 30- dioic acid (2).  Compound 1 is a new triterpene and compound 2 is isolated from this plant for the first time.