Abstract: Objective To investigate the status of rumination in patients after total hip arthroplasty, analyze its influencing factors, and provide reference for further development of intervention measures. Methods A total of 245 patients after total hip arthroplasty who were treated in the orthopaedics department of two tertiary Class A hospitals in Guangzhou from March to November 2019 were selected and investigated using the general situation questionnaire, Event Related Rumination Inventory, Social Support Rating Scale and Herth Hope Index. The t-test, analysis of variance, Pearson correlation analysis and multiple linear regression analysis were used to analyze the rumination level in patients after total hip arthroplasty. Results The scores of intrusive rumination and deliberate rumination of patients after total hip arthroplasty were(14.56±4.57) and(13.29±4.48). Multivariate linear regression analysis showed that education level, Harris hip score, social support, and level of hope were the main influential factors for invasive rumination(F=26.533, P<0.001; R²=0.326, adjusted R²=0.314);Educational level, monthly household income, social support, and level of hope were the main influencing factors of deliberate rumination(F=41.964, P<0.001; R²=0.534, adjusted R²=0.522). Conclusion The rumination of patients after total hip arthroplasty are at a moderately low level. Clinical medical staff should adopt individualized intervention according to the patient's situation, pay attention to the impact of social support and hope levels on their rumination, guide patients to change to positive cognitive processing, and ultimately promote the postoperative rehabilitation.