[Objective]To research the chemical components in the roots,stems,leaves and nut shells of Gonocaryum lobbianum (Merr.) Kurz. ,and to detect the contents of total flavonoids in different parts of G. lobbianum. [Methods]The chemical components in water extract, 95% ethanol extract and petroleum ether extract from different parts of G. lobbianum were researched by preliminary tests. With rutin as the reference substance,the contents of total flavonoids in different parts of G. lobbianum were detected by NaNO2-Al(NO3)3-NaOH colorimetric method. [Results]Different parts of G. lobbianum all had polysaccharides,amino acid,polypeptide,protein,alkaloid,sterides,triterpenes,volatile oil,phenols,tannin,coumarin,lactone and flavonoids. There might be organic acids in different parts of G. lobbianum. Besides,there were anthraquinone,cardiac glycoside and phenols in the roots and leaves; and anthraquinone,cardiac glycoside and phenols might be existed in the stems and nut shells. Saponin did not exist in any part of G. lobbianum. The contents of total flavonoids in the roots, stems,leaves and nut shells of G. lobbianum were 0. 028% ,0. 017% ,0. 033% and 0. 012% ,respectively. Among them,leaves had the maximum content of total flavonoids. [Conclusions]The types of chemical components were preliminarily obtained in the roots,stems,leaves and nut shells of G. lobbianum; and the contents of total flavonoids in different parts were detected,which provided references for the further research on G. lobbianum. [Objective] To research the chemical components in the roots, stems, leaves and nut shells of Gonocaryum lobbianum (Merr.) Kurz., And to detect the contents of total flavonoids in different parts of G. lobbianum. [Methods] The chemical components in water extract, 95% ethanol extract and petroleum ether extract from different parts of G. lobbianum were researched by preliminary tests. With rutin as the reference substance, the contents of total flavonoids in different parts of G. lobbianum were detected by NaNO2-Al (NO3) 3-NaOH colorimetric method. [Results] Different parts of G. lobbianum all had polysaccharides, amino acid, polypeptide, protein, alkaloid, sterides, triterpenes, volatile oil, phenols, tannin, coumarin, lactone and flavonoids. be organic acids in different parts of G. lobbianum. Besides, there were anthraquinone, cardiac glycoside and phenols in the roots and leaves; and anthraquinone, cardiac glycoside and phenols might be existed in the stems and nut shells. Saponin did not ex ist in any part of G. lobbianum. The contents of total flavonoids in the roots, stems, leaves and nut shells of G. lobbianum were 0. 028%, 0. 017%, 0. 033% and 0. 012%, respectively The Conclusions] The types of chemical components were preliminarily obtained in the roots, stems, leaves and nut shells of G. lobbianum; and the contents of total flavonoids in different parts were detected , which provided references for the further research on G. lobbianum.