The present study aimed to investigate the mediating role of Bond and Itzhak's psychological flexibility models in the relationship between positive parenting schemas and social anxiety in students. The research method is correlational and the statistical population includes students aged 18 to 48 in 1404. 250 people were selected for the present study through convenience sampling and responded to the Lewis Parenting Schema Questionnaire (2018), Hayes and Bond's Flexibility (2019), Itzhak et al.'s Flexibility (2014), and Oweyse et al.'s Social Anxiety (2021). The results of the correlation analysis showed that Bond's psychological flexibility has a significant and positive effect on the relationship between positive parenting schemas and social anxiety (p<0.01). The results of the structural equation analysis showed that Itzhak's psychological flexibility has a mediating role in the relationship between positive parenting schemas and social anxiety. Compared to Bond's psychological flexibility, Itzhak's flexibility seems to be more complex. Based on the research findings, it can be concluded that the results indicate the importance of parenting schemas in explaining cognitive flexibility. Therefore, attention can be paid to the aforementioned variable in the scope of interpersonal, educational, family, and therapeutic relationships.