Abstract:This article carries on the present situation and the drive factors to the American Standardization system by using the process analysis method, which takes the American standard system as the study object. The American standardization system has experienced three stages: the growth stage, standardized development stage driven by the policy and optimization and upgrading stage driven by the market, through the empirical analysis. It has received seven main factors, which would impacts standard system development,including government policy, international cooperation and exchanges, trade level, technological level, market environment, development concept and joint governance. Among them, government policy, trade level, technology level and development concept are the driving factors of the first phase development, then market environment, joint governance, technological level and development concept are the driving forces for the development of the second phases.