Abstract: Based on analysis of current situation of traffic safety in China,the research status of traffic accidents be-tween China and the U.S.are further discussed,including information collection technology,accidents collection system and traffic data sharing.The differences between the two countries,including definition and statistical standards of death accidents,reliability of data sources,management mechanism,and accident statistics systems,are described in detail. Considering the current situation of data management for traffic accidents in China,the predominant problems in collecting accident data are presented.Measures to improve the statistical systems of accident data are also proposed in China.Spe-cifically,these measures includes unification of statistical standards of accidents,guarantee of reliability of data sources, enhancement of data sharing,and establishment of a statistical and management systems supported by the government, citizens,and scientific research institutes.The results are beneficial for construction of statistical systems of traffic accidents.