Inrecentyears，there're many new features in the development of international technicalbarri-ersintheform，scaleandimpact. Thisarticleanalyzesthecharacteristicsoftechnicalbarriersthatdevel-oped and developing countries pursue on in global perspective. Based on MQS economic models，it is foundthat international technical barriers presenta certainperiodicity，andhavedif erenttradeef ects.It alsopoints outtheproblems of China's technical barriers to trade and proposals for improvement.