Radionuclide therapy is a treatment in which a radioactive isotope is labeled on a carrier and fed into a corresponding organ of the body, which can cause radionuclide concentration in a certain organ of the body, thus providing irradiation and internal radiotherapy. This kind of radionuclide therapy is suitable for some malignant tumors of the thyroid gland, such as thyroid cancer, hyperthyroidism, and some other endocrine gland tumors, which can be treated with radionuclides with very good results. Moreover, this treatment does not require incision, and the patient suffers very little pain, and the cost is also suitable for those patients who cannot undergo surgery and have financial problems.