This paper selects sample data of Shenzhen a share listed companies after equity splitting reform during 2006-2014, combines the double company management factors of external media attention and internal equity property, and overall tests the correlation between the two and accounting information disclosure and the difference in the information disclosure quality. The testing results show that both the equity property in internal company management factor and media attention in external company management factor are significantly positively correlated with accounting information disclosure quality, however, media attention has stronger management actions on information disclosure quality of non state owned listed companies than that of state owned listed companies.