Effects of elemene on human lymphocyte subsets and its cooperation were studied by method of radioactive compounds incorporation. The results indicated that elemene could increase the radiation resistance of blood lymphocytes or its subsets,enhance the helping effects of ,http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=42489870&type=,http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=42489874&type=,http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=42489872&type=, cells on B cells and relieve the radiation damage of membrane receptor.