Abstract: Thyroid associated ophthalmopathy(TAO) is one of the most familiar disease in orbit and an autoimmune disorder. At present, it was proved that the patients with active TAO would benefit from immuno-suppressive therapy or retrobulbar radiotherapy, but inactive TAO. The veracity and objectivity of TAO activity degree assessment determine patient's treatment project, curative effect and prognosis. There is important significance of jugging activity and evaluating curative effect by somatostatin receptor scintigraphy in TAO.