Objective:To investigate the status of social alienation in maintenance hemodialysis (MHD) patients, and analyze its correlation with self disclosure and social support.Methods::From May 2019 to March 2021, 156 MHD patients admitted to Nanyang Central Hospital were selected as the research objects by using convenient sampling method. A cross-sectional survey was conducted by using general information questionnaire, general alienation scale, pain disclosure index scale and social support scale.Results:A total of 176 questionnaires were issued, with an effective recovery rate of 88.64%(156/176). The social alienation score of 156 patients with MHD was (41.57±4.89) points, which was at the upper-middle level and negatively correlated with the total scores of the Distress Disclosure Index and the Perceived Social Support Scale ( r=-0.526, -0.284, all P<0.01). The results of multiple linear regression analysis showed that age, educational level, and per capita monthly household income were the main factors affecting social alienation ( β=0.199, -0.361, -0.290, all P<0.01). After controlling for the above factors, self disclosure and social support independently explained the variance of social alienation in MHD patients increased by 20.2% ( β=-0.440, -0.200, all P<0.01). Conclusions:MHD patients have a high sense of social alienation. Medical staff should pay attention to patients who are older, less educated, and have low family income. Self disclosure and social support are modifiable variables, so medical staff can reduce their social alienation and improve the quality of life by training patients on self disclosure and improving the level of social support.