Based on the A share companies from 2012 to 2014，this paper investigates the relationship between the media coverage，CEO incentives，and the effectiveness of internal control.The study reveals that the media coverage can significantly enhance the effectiveness of internal control and CEO incentives can strengthen the effect.But CEO equity incentives do not play a regulatory role in the effect of network media with the aim of improving the effectiveness of internal control.These conclusions are different in the different property rights enterprises.Further test founds that CEO incentive can directly promote the effectiveness of internal control.The results affirm the governance function of media supervision and show that interaction of internal and external governance is the key to the improvement of the effective internal control.