Abstract: With the trends of the equity openness and socialization and the managerial professionalization in China’s family business, the principal-agent problem in family business has aroused widespread concerns. Managerial ownership and accounting information, as the main solutions to the principal-agent problem, have become an important content in academic researches. Taking the private listed companies in China’s A-share market during 2007-2010 as the research samples, this paper empirically examines the differences of accounting information quality between family listed companies and non-family listed companies. The results indicate that compared to the non-family listed companies, the family listed companies have lower earning quality and information disclosure quality. Further examine reveals that managerial ownership can play a role of invigorating the accounting information quality of family firms.

Key words: family control; managerial ownership; accounting information quality