This study investigates the effects of external financing requirement on corporate governance index and the value of companies listed on the Tehran Stock Exchange. This research in nature is a descriptive-correlation research. The sample consistes of 180 companies during 1392 to 1396. The hypotheses tested by multivariable regression panel data. The results show that the corporate governance have an insignificant effect on the companys’ ؛ value. However, the need for external financing has significant effects on both the value of the companies and corporate governance index. Based on the results, it is recommended that business managers seriously seek to enhance the quality of corporate governance in controlled entities if they seek to influence the factors that enhance capital structure. Capital structure selection is optimized. Based on the results, it is recommended that business managers seriously seek to enhance the quality of corporate governance in controlled entities if they seek to influence the factors that enhance capital structure. Capital structure selection is optimized.