Abstract: Since 1 995,the Chinese civil aviation industry in China has experienced a sustainable and speedy growth. Therefore,a more efficient and effective oversight to industry safety is in demand.For this purpose,the tools for safety audit and assessment have been developed by Civil Aviation Administration of China.The tools were developed on the ba-sis of a core principle of systematic management.The data that related to safe operations and supporting capabilities were collected from airlines,airports,and air traffic controllers.The tools have functions as visualization,comparison,analy-sis and statistics of safety information for individual organization,multiple organizations,as well as the entire industry. During the 6-year practice in safety audits and assessment since 2007,1 7 airlines,1 71 airports,and 42 air traffic control-lers have been audited with the tools.Moreover,230 quantitative assessment reports have been released and 8 589 safety risks have been identified.The 6-year practice indicates that these tools are effective in identifications of safety risks.It al-so indicates that the tools can be provided with decision support for industry-wide safety oversight.Finally,the possible improvements are also presented based on analyzing the deficiencies of safety audit and assessment tools.