Most of patients who have cancer still suffer from various forms of pain that significantly impact their quality of life. Cancer pain is a difficult problem for clinicians because analgesic drugs do not always procure complete relief. Acupuncture has been used as complementary treatment of cancer pain. We report a patient with colorectal cancer who suffer from cancer pain. The patient underwent chemotherapy, radiotherapy and opioid therapy. However, the patient insisted on being treated for his continuous pain with oriental medical treatment. The patient was treated with acupuncture(especially SAAM acupuncture) for 2 months, additional herbal medication was administered. After those treatments, the patient showed remarkable improvement in terms of intensity and severity of cancer pain. Further study will be needed in order to determine the long-term efficacy of acupuncture on cancer pain.