Objective : To study the chemical constituents from Kalopanax septemlobus and to obtain a more understanding of its active principles. Method: Compounds were extracted with 80% ethanol and isolated by column chromatography on silica gel

ODS and prepared with HPLC; the structures were identified by spectroscopic analysis (1H NMR

13C NMR and EIMS). Result: Seven compounds were obtained and identified as 3-O-α-L-arabinopyranosyl-28-O-α-L-rhamnopyranosyl-(1→4)-O-β-D-glucopyranosyl-(1→6)-O-β-D-glucopyranosyl ester of hederagenin (Ⅰ)

kalopanaxsaponin I (Ⅱ)

3-O-α-L-rhamnopyranosyl-(1→2)-O-α-L-arabinopyranoside-28-O-β-D-glucopyranosyl-(1→6)-O-β-D-glucopyranosyl ester of hederagenin (Ⅲ)

kalopanaxsaponin B (Ⅳ)

liriodendrin(Ⅴ)

2-methoxyhydroquinone 4-O-[6-O-(4-O-α-L-rhamnopyranosyl)-syringyl]-β-D-glucopyranoside (Ⅵ)

syringin (Ⅶ). Conclusion : Compound Ⅰ

Ⅲ

Ⅴ

Ⅵ were obtained from this cdrus plant for the first time.