The very first session of the symposium on ‘cancer and acupuncture’ was held at the 53^rd Annual Conference of the Japan Society of Acupuncture and Moxibustion (JSAM). It suggested the efficacy and potential of acupuncture and moxibustion not only for cancer but also for cancer patients. This is the second session for further discussion. In recent years, acupuncture and moxibustion treatment for cancer patients has come to the world's attention, and many reports about its expediency and beneficial effect have been conducted in Japan and in the world. However, the adaptation range of acupuncture and moxibustion treatment for cancer is still limited because there is not enough evidence, so compilations of more sufficient case reports or research for presentation and effects in preventing relapse of cancer are required to prove its reliability. Acupuncture and moxibustion are used as one of the medical treatments directed at relieving symptoms and life-sustaining treatment in hospitals today. Earlier, frequent acupuncture treatment led to significant efficacy for cancer patients, and it is also reported that the number of lymphocytes increases in sequential acupuncture treatment but the number tends to return in a short time after cessation of treatment. Sequential autonomic immune therapy over a long term revealed several significant effects as follows; lymphocyte activation while the lymphocyte count remained, increase of cytokine (IL 12, IFNγ, TNFα, etc.) production and Th 1, Th 1/Th 2, immunostimulatory activity effect, reduction of tumor markers down to or close to normal, reduction or resolve of malignant neoplasm and recurrence prevention for unoperated cancer patients, QOL improvement with symptoms relief and life prolongation. In this seminar, it suggested that acupuncture and moxibustion are potential and appropriate treatments for cancer and further research in this field is required.