【Abstract】Objective To investigate the mental and physical state of elderly patients with sudden deafness during hospitalization (SD), and to analyze its influence on therapeutic effect. Methods A total of 150 elderly SD patients admitted to our hospital from June 2021 to June 2023 were recruited and served as SD group, and another 50 age-matched individuals who took physical examination during the same period and had no hearing impairment were enrolled and subjected as control group. The short-form-36 health survey (SF-36) was used to investigate the quality of life (QOL) of SD group, and based on the average SF-36 total score, the elderly SD patients with the total score≥ the average score were assigned into a high QOL group (n=66), and those with the total score < average score into a low QOL group (n=84). The efficacy of their treatment was evaluated in 1-3 courses of treatment. SPSS 22.0 was used for data analysis. Depending on data type, student′s t test or Chi-square test was performed for intergroup comparison. Multivariate logistic regression model was employed to determine the related factors affecting the QOL of the patients. Spearman correlation analysis was utilized to evaluate the correlation between QOL and therapeutic efficacy in the elderly SD patients. Results Before treatment, the scores of dimensions of physiological function (PF), bodily pain (BP), social function (SF), mental health (MH) and total score of SF-36 scale were all significantly lower in the SD group than the control group (P<0.05). After treatment, the total effective rate of treatment was 48.67% (73/150) in the SD group, and the rate was 59.09% (39/66) in the high QOL group, which was obviously higher than that of the low QOL group (40.48%, 34/84, P<0.05). Spearman correlation analysis showed that the total SF-36 score was positively correlated the therapeutic efficacy in the elderly SD patients (r=0.211; P=0.023). Multivariate logistic regression analysis suggested that time from onset to treatment >7 d (OR=3.084,95%CI 1.529-9.463), dizziness (OR=2.125,95%CI 1.245-3.629), sleep disorder (OR=4.768,95%CI 2.122-10.713), anxiety (OR=1.923,95%CI 1.330-2.780), type A personality characteristics (OR=5.714,95%CI 1.481-22.053) and acute stress disorder (ASD) (OR=4.191,95%CI 1.518-11.568) were risk factors for poor QOL, and positive coping style (OR=0.389,95%CI 0.200-0.760) was a protective factor in elderly SD patients. Conclusion The QOL is significantly lower in the elderly SD patients than the individuals of same age, and there is a correlation between QOL and therapeutic effect in them. In addition to the necessary interventions, it is recommended to pay more attention to the QOL of the patients, and to improve their QOL during hospitalization in aspects of sleep improvement, emotion regulation, adjustment of coping styles and others.