Nelumbo nucifera Gaertn. (Nelumbonaceae), commonly called lotus, is widely distributed throughout Eastern Asia. It has been used for food and medicine for a long time. A phytochemical investigation of the EtOAc extract of the seed embryos of this plant species resulted in the isolation of five alkaloids, neferine (1), nuciferine (2), pronuciferine (3), armepavine (4) and N-methylisococlaurine (5). The structures of these compounds were identified using chemical and spectroscopic techniques.