Objective To investigate the level and factors associated with psychological flexibility among convalescent stroke patients, and to provide reference for targeted interventions.Methods A total of 156 stroke patients during the convalescent phase were selected from a rehabilitation medical department and surveyed using a self-designed demographic questionnaire, the Acceptance and Action Questionnaire-Ⅱ (to measure psychological flexibility), the Cognitive Fusion Questionnaire, the Stroke Rehabilitation Motivation Scale, and the Stroke Stigma Scale.Results The sample scored （27.78±12.01） for psychological flexibility. Multiple linear regression analysis showed that main caregivers, cognitive fusion, rehabilitation motivation, and stigma were factors influencing psychological flexibility （all P＜0.05）, which could explain 56.5% of the total variance.Conclusion The psychological flexibility of convalescent stroke patients is relatively low. Personalized interventions should be implemented based on the influencing factors to improve stroke patients′ psychological flexibility, thus to facilitate their physical and mental recovery.