Abstract:Objective:To study the chemical constitutents in the aerial part of Thalictrum atriplex.Method:Chromatography and spectral analysis were used to isolate and elucidate the constitutents.Result:Six compounds were isolated from the aerial part of Thalictrum atriplex,and elucidated as protocatechuic acid,caffeic acid,p coumaric acid,kaempferol,β sitosterol and N-methylcorydaldine.Conclusion:They are all isolated from the plant for the first time.