The present invention relates to an oral care composition comprising 2-methoxycinnamaldehyde and, more specifically, to a composition for preventing, alleviating, or treating oral diseases, wherein the composition is safe to a human body and has excellent effects. The 2-methoxycinnamaldehyde is extracted by using at least one solvent selected from the group consisting of water, distilled water, methanol, ethanol, propanol, isopropanol, butanol, acetone, ether, benzene, chloroform, ethylacetate, methylene chloride, n-hexane, hydrochloric acid, acetic acid, formic acid, diethyl ether, and cyclohexane.COPYRIGHT KIPO 2017본 발명은 2-메톡시신남알데하이드를 포함하는 구강 관리를 위한 조성물에 관한 것으로, 인체에 안전하면서도 우수한 효과를 갖는 구강질환 예방, 개선 또는 치료용 조성물에 관한 것이다.