Risk-based auditing involves significant professional judgment in assessing the risk of material misstatement and identifying adequate and appropriate tests to achieve the desired level of audit risk. To assess the optimal level of audit risk, corporate governance structures are at risk of control. Which seems to be determined by management's attitude and personality towards internal controls and the quality of corporate governance. To this end, standard deviations from standards and norms, corporate pricing structure and the NEO Five-Person Scale were measured through the NEO Personality Inventory. Then, the importance of audit risk criteria was determined by paired questions and hierarchical analysis (AHP). The case study of this study is all companies listed in Tehran Stock Exchange in the year 1396. To test the conceptual model of research the structural equation modeling method with variance based on PLS software was used. The findings of the study indicate that there is a negative and significant relationship between board independence, managerial ownership, and audit risk. There is a negative relationship between institutional ownership, ownership concentration, and non-meaningful personality traits. There is a positive and significant relationship between board independence, institutional ownership, and ownership concentration with audit risk. Personality type and conscientiousness have no significant moderating role on the above relationships.