Mergers and acquisitions is an effective way to rapidly expand the scale of enterprises and achieve profit growth. This article selected the M&A events of China's media industry listed companies from 2016 to 2017 as a sample, and conducted an empirical analysis on the relationship between CEO tenure, internal control, and media industry M&A performance. The results show that the M&A performance of the media industry has a tendency to rise first and then decline after the M&A; CEO tenure is negatively correlated with the M&A performance of the media industry; under the premise that other conditions remain unchanged, the effectiveness of media industry corporate internal control will promote the improvement of M&A performance; perfect internal control can weaken the negative correlation between CEO tenure and M&A performance in media industry. Based on the above research conclusions, some suggestions were put forward to improve the M&A performance of enterprises in the media industry.