Objective To study the chemical constituents of the ethyl acetate extraction of Aralia chinensis Linn. var. nuda Nakai. Methods The ethyl acetate part of 70% ethanol extract of A. chinensis Linn. var. nuda Nakai was purified by silica gel, ODS, Sephadex LH-20, and semi-preparative HPLC, and the structures of the compounds were identified by the physicochemical properties and spectral data. Results Twelve compounds were isolated and identified as phthalic acid, bis-(2,5-dimethylhexyl) ester (1), (9E)-8，11，12-trihydroxyoctadecenoic acid methyl ester (2)，methyl (9S，10R，11E，13R)-9，10，13-trihydroxyoctadec-11-enoate (3), capillasterolide (4), hexacosane (5), (-)-loliolide (6), methyl hematinate (7), tyraminel (8), (S)-methyl 2-acetamido-3-phenylpropanoate (9), 3-hydroxy-4-methoxybenzoic acid (10), vanillic acid (11), and p-hydroxybenzoic acid (12). Conclusion Compounds 1-10 were isolated from this genus Aralia for the first time, and compounds 1-11 were first isolated from the plant.