Abstract:This paper reports the identification of four compounds isolated from the cortex of Morinda officinalis growing in Guangdong Province. These compounds are β-sitosterol (Ⅰ), 2-methyl-anthraquinone(Ⅱ), rubiadin-1-methyl ether(Ⅲ) and 24-ethylcholesterol(Ⅷ). Compounds Ⅱ and Ⅷ are isolated from Morinda Genus for the first time.