Breast cancer is one of the most common malignant tumors in women. According to statistics, it accounts for 7-9% of all malignant tumors in women, second only to uterine cancer. Breast cancer is insidious and most of the patients are already in the middle and late stages when diagnosed, so it is difficult to have satisfactory results with local treatment only. TCM has a strong holistic concept and can often consider the characteristics of the whole body of the patient, not just the cancer lesion itself. TCM treatment can correct certain disorders of the body, remove the recurrence factors of tumors and reduce the chance of metastasis; secondly, TCM is less harmful to healthy cells and generally does not produce new damage to physical strength due to the treatment itself, and while the cancer is improving, physical strength will be gradually restored and immunity will be gradually enhanced. Chinese medicine has unique advantages in the prevention and treatment of pre-cancerous diseases from a holistic perspective, such as cystic breast enlargement. Traditional Chinese medicine can reduce the toxic side effects of the “three axes”. Surgery, radiotherapy and chemotherapy are the three axes of conventional breast cancer treatment, and the cooperation of Chinese medicine can produce special effects in reducing the toxic side effects of these three axes, which can greatly improve the survival period and quality of life of patients. If breast cancer patients are treated with TCM in a timely manner after surgery, it will be beneficial to prevent recurrence and metastasis of breast cancer if they can improve their diet and sleep and strengthen their physical condition. If the Chinese medicine treatment is combined with breast cancer chemotherapy or after chemotherapy, such as strengthening the spleen and stomach, benefiting Qi and blood, tonifying the liver and kidney, softening and removing stasis, it can better relieve the reaction of chemotherapy and help chemotherapy to proceed smoothly; if the Chinese medicine treatment is combined with tonifying Qi and blood during and after breast cancer radiotherapy, it can have better effect on increasing the number of white blood cells and enhancing immune function, thus ensuring radiotherapy to proceed smoothly. Professor Wu Yichun especially emphasizes early diagnosis and surgery for breast cancer. Chinese medicine can help to eliminate the evil. The treatment of breast cancer by TCM should follow the principle of diagnosis and treatment of TCM, based on the patient’s symptoms, physical signs, the western treatment methods used, different treatment stages, as well as the patient’s post-illness qi and blood strength and weakness of the internal organs, and then propose the corresponding treatment plan. Chinese medicine to strengthen the spleen and kidney have all achieved remarkable efficacy in the treatment of breast cancer, which, together with surgery and radiotherapy, can enhance the therapeutic effect, alleviate clinical symptoms, reduce the toxic side effects of western medicine, improve the quality of survival and thus prolong the survival period,. Professor Wu Yichun emphasizes dialectical evidence in the diagnosis of breast disease at all stages of clinical practice, and the treatment emphasizes pacification and elimination.