Abstract: Mining product safety approval and certification management system was effective protection for national mine safety production. Through continuous innovation and improvement, safety approval and certification work had achieved scientific, normative, proceduralized and information. Site audit was not only an indispensable part in the process of examining and issuing of mining product safety approval and certification, but also the effective way which facilitated the implementation of supervision and management after certification. Through a brief review of the development process of mining product safety approval and certification management system, it analyzed and studied site audit management status of mining product safety approval and certification from the aspects of site audit checking role, management tools, audit assignments, audit cycles, etc. Finally, it proposed improvement suggestions, such as strengthening auditor group construction, carrying out enterprise hierarchical management, improving audit charge way.