Abstract: Chimonocalamus delicatus Hsueh et Yi stem was used to be a special liquor material in China. The chemical composition of Chimonocalamus delicatus Hsueh et Yi stem were studied by GC-MS, modern separate technology and NMR. α-caryophyllene had been identified by GC-MS. Nine compounds were separated by modern separate technology and identified the structures by NMR. The compounds were glucose, fructose, galactose, sucrose, xylose, xylan, galactose acid-glucose-fructose, glucose acid and galactose acid. Speculate that α-caryophyllene miht be influence the wine smell sweet and polysaccharides made the wine taste good.