The external governance of the audit is an important issue in the research of corporate governance. It has been discussed that the auditor can restrain the interest occupation behavior of the large shareholders, and the research on the influence of the audit on the over financing behavior of the enterprise is limited. Taking the non financial listed company of China as a sample, the over financing behavior of the controlling shareholders is studied, and the effect of the audit on the over financing of the controlling shareholders is studied. The research has found that the controlling shareholder has a significant positive relationship with the over financing rate of the enterprise; when the holding proportion of the controlling shareholder is higher, the over financing rate of the enterprise increases with the increase of the holding proportion of the controlling shareholder, and the controlling shareholder shows a strong entrenchment effect. When the holding ratio of controlling shareholders is low, the controlling shareholders will not over finance, which shows a kind of benefit synergy effect. At the same time, the high quality audit can restrain the controlling shareholder’s excessive financing behavior. |