Breast cancer is one of the most common malignant tumors in women. According to statistics, the incidence rate accounts for 7-9% of all kinds of malignant tumors in the female body, second only to uterine cancer. Breast cancer is insidious in origin and most patients are already in the middle and late stages when diagnosed, so it is difficult to have satisfactory results with local treatment only. As a whole body treatment, TCM has unique advantages in breast cancer treatment. TCM conditioning 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; while the cancer is improving, physical strength will be gradually restored and immunity will be gradually enhanced. TCM prevention and treatment of pre-cancerous diseases also has unique advantages from a holistic perspective, such as cystic breast enlargement. Chinese herbal medicine can reduce the toxic side effects of the “three axes”. Surgery, radiotherapy and chemotherapy are the three axes of conventional breast cancer treatment, but the cooperation of TCM 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 TCM treatment is combined with breast cancer chemotherapy or after chemotherapy to strengthen the spleen and stomach, benefit Qi and blood, nourish the liver and kidney, and soften and remove blood stasis, it can better relieve the reaction of chemotherapy and help chemotherapy to proceed smoothly; if TCM treatment is combined with Qi and blood nourishment during and after breast cancer radiotherapy, it can better increase the number of white blood cells and enhance immune function, thus ensuring radiotherapy to proceed smoothly. Chinese medicine can support the righteousness and eliminate the evil. The treatment of breast cancer by TCM should follow the principle of diagnosis and treatment by 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.