A highquality audit team is an important element of the audit supervision system and it determines the extent of the role of government auditing. In China, the level of professionalization of government auditing is relatively low, which severely restricts the role of audit supervision. In the process of building an audit supervision system that is “centralized, unified, fully covered, authoritative and efficient”, we must strengthen the professionalization of government auditing. After discussing the meaning of audit professionalization, the paper analyzes the deficiencies of audit professionalization in China, and then puts forward recommendations to promote the audit professionalization systematically. The recommendations cover top-level design, the setting of practice standards, capacity building of auditors, management system, professional security system, auditing discipline and education system. This study enriches the literature on auditing professionalization, and provides reference for the process of audit professionalization in China.