In this study, the alkaloid compounds of Ricinus communis have been evaluated. The chemical compositions of the leaf ethanol extract of Ricinus communis were investigated using gas chromatography- mass specroscopy. GC-MS analysis of Ricinus communis alkaloid leaf ethanol extract revealed the existence of the n-haxadecanoic acid, Octadecanoic acid, 1-hexadecanol. 2-methyl, Gibb-3-ene-1. 10decarboxylic acid ,2,4a. 7trihydroxy-1-methyl—8-methylene, 1.4a-lactone. 10-methyl, L-Valine, ethyl ester, hexadecamethyl, tetradecamethyl, octadecamethyl, Butanedioic aciod hydroxyl. Diethyl ester,1.1.3.3.5.5.7.7.9.9.11.11.13.13.15.15 hexadecamethyl, Triethyl citrate, Diethyl Phthalate, and 3-Octadecene.