【Objective】To  analyze  characteristics  of  ocular  surface  damage  in  inactive  mild  and  moderate- severe Graves′ Orbitopathy（GO）.【Methods】In this retrospective study，the clinical characteristics of GO patients at Sun Yat- sen Memorial Hospital between April 2017 and April 2019 were reviewed. Data were collected from 192 eyes of 192 cases. There were 121 eyes of 121 cases with mild GO，and 71 eyes of 71 cases with moderate-severe GO. All patients were divided into corneal-damage and non-corneal-damage groups. The ocular surface irritation，tear film breakup time（TFBUT），marginal reflex distance 1（MRD1），marginal reflex distance 2（MRD2），Schirmer′ s test Ⅱ ，and proptosis of the two groups were compared. 【 Results 】 Grittiness（21 cases，52.5%）and photophobia（23 cases，57.5%）were higher，in corneal-damage group of inactive mild GO patients，compared with non- corneal- damage group（23 cases，28.4% ，29 cases，35.8%，respectively）（P ≤ 0.05）；but there was no statistical difference in symptoms between the two groups of moder⁃ ate-severe GO patients. There was statistical difference in increased MRD1 between corneal-damage group［5.1（S = 1.9） mm］and non- corneal- damagegroup［4.4（S = 1.5）mm］of inactive mild GO patients（P ≤ 0.05）. Besides，decreased TFBUT in moderate- severe corneal- damage GO patients was 3.2（S = 2.3）s，shorter than non- corneal- damage group［6.2（S = 3.2）s，（P ≤ 0.05）］. In corneal-damage groups，there was no significant difference in symptoms and signs be⁃ tween mild and moderate- severe GO. 【Conclusions】Grittinessand photophobia are common symptoms in patients with mild GO ocular surface damage，and MRD1 is related with ocular surface damage. There is no difference in symptom be⁃ tween corneal-damage group and non-corneal-damage group of moderate-severe GO patients，and TFBUT is related with ocular surface damage.