Abstract: Objective: To explore the correlation between the postoperative pain degree and pain self-management behavior in patients with knee and hip osteoarthritis.Methods: The data of 127 operation patients with knee and hip arthritis were evaluated at admission.The pain intensities were evaluated using the Pain Assessment Questionnaire after 24 h,48 h and 72 h of operation.The pain intensity at the start of investigation,and the worst pain,lightest pain and average intensity of pain at past 24 h were investigated.The pain self-management behavior questionnaire was used to investigate the pain after 3 d of operation.The correlation between pain intensity and total score of pain self-management behavior was analyzed.Results: The proportions of the current pain,worst pain,lightest pain and average pain,which achieved a moderate degree or above,were 29.13%,100.00%,3.94% and 29.13%,respectively.The total score of postoperative pain self-management behavior was(18.99±3.67).Univariate analysis showed that the scores of postoperative pain self-management behavior in male,urban residents,high education level and history of surgery patients were higher than that in female,rural residents,low education level and no history of surgery patients(P<0.05 to P<0.01).The postoperative pain intensity was negative correlation with the score of pain self-management behavior(P<0.01).Conclusions: The postoperative pain control and pain self-management ability in patients with knee and hip arthritis are poor.In clinical pain management,the patients' own rolen and pain self-management ability should be improved,which can benefit to ease pain and improve the quality of life.