Cancer patients need to consult their doctors for vaccination. Cancer patients who are currently in stable condition and have no complications can usually receive the vaccine under the supervision of their doctors. It is usually considered that cancer patients with stable disease control can receive the new crown vaccine. Contraindications to vaccination include acute and chronic disease episodes, allergies, and severe neuropsychiatric disorders. Cancer patients who are in the onset of illness and have complications such as fever are not recommended to receive the New Crown vaccine. Multiple organ systems of cancer patients may be damaged, therefore, before cancer patients receive the New Crown Vaccine, it is recommended to consult the attending physician, and if the physician determines that the current physical condition meets the requirements for vaccination, the New Crown Vaccine can be administered.