Since clinical data on New Crown vaccination for oncology patients is limited, there is no definite conclusion on whether breast cancer patients can receive New Crown vaccination. It is recommended to consider various factors such as the patient’s own physical condition, the extent of cancer treatment, and whether the patient is in an emergency treatment period. Usually, if a patient is in the onset of cancer, during treatment, or recovering from treatment, the New Crown vaccine is not recommended. This is because patients need to undergo surgery, radiotherapy, chemotherapy, etc. The use of radiation and drugs during the treatment of these medical modalities may interact with the ingredients in the New Crown vaccine and have an effect, causing discomfort to patients. Breast cancer is a highly aggressive cancer that is difficult to control in most cases, and until the cancer is controlled, the patient is weak and has low resistance to the virus. The new crown vaccine is mostly an inactivated vaccine, which may not only prevent the cancer treatment from working and interrupt the systematic treatment course of the cancer, but may also affect the patient’s body, so vaccination is not recommended. If the patient has gone through a series of surgical treatment, chemotherapy and radiotherapy, and the physical indications are already in a stable state, and there is no need to take drugs to maintain a normal life at this stage, he or she can bring the medical records to the hospital and consult with the doctor, and after the doctor’s evaluation or examination, he or she can receive the New Coronavirus vaccine to increase the body’s immunity to the New Coronavirus and reduce the chance of infection. In addition to vaccination, breast cancer patients should also pay attention to proper exercise to increase their resistance, increase and decrease clothing during cold season, wear masks to prevent respiratory infections, and eat more vegetables and fruits to increase vitamins and less spicy and stimulating food.