Objective: To investigate the chemical constituents of Corydalis hendersonii. Method: The constituents were extracted by using systematic solvents

separated and purified by repeated silica gel column chromatography

Sephadex LH-20 column chromatography

semi-preparative HPLC

etc. The structures of the obtained constituents were identified by using NMR

MS and other spectral methods as well as literature data. Result: Thirteen compounds were obtained and identified as apigenin(1)

quercetin(2)

luteolin(3)

kaempferol(4)

5

7

4'-trihydroxy flavanone(5)

rutin(6)

quercitrin(7)

astragalin(8)

ursolic acid(9)

oleanic acid(10)

stigmasterol(11)

β-sitosterol(12)

and daucosterol(13). Conclusion: All the components were obtained from Corydalis hendersonii for the first time.