恶性肿瘤已经成为严重威胁人类生命与健康的疾病之一，随着对恶性肿瘤治疗方面研究的不断进展，越来越多的抑制肿瘤的有效物质被发现。齐墩果酸（ OA）是近年来发现的具有抑癌作用的重要植物提取物，多年来的研究表明其具有明显的抑制肿瘤生长的作用，随着对齐墩果酸研究的不断深入，其抗肿瘤作用的机制也逐渐被发现。研究结果表明齐墩果酸的抗肿瘤机制存在多条途径。“,”Malignant tumor has become one of the serious problems threatening human life and health . With the development of the research on malignant tumor treatment , more and more antitumor active sub-stances have been found.Oleanolic acid( OA) is an important plant extract that can significantly inhibit the growth of cancer,which is found in recent years .With the deepening of research of OA ,its anti-tumor mecha-nisms have also been identified ,The results show that the anti-tumor mechanism of oleanolicacid in the pres-ence of multiple way.