In recent years, more and more technical laws and regulations, standards, conformity assessment procedures, quarantine measures, product certification, packaging marks, etc. have emerged in international trade, and the trend is becoming more and more stringent. This implicit technical barries to trade (TBT) has brought severe challenges to the development of high-tech industry. Based on the analysis of 62 FTAs signed and entered into force in "the Belt and Road" countries from 2000 to 2020, this study measures TBT by horizontal measurement method and constructs gravity model to empirically analyze the impact of FTAs technical barriers to trade on high-tech industries. Found that contains technical barriers to trade of the free trade agreement signed into law can promote new and high technology industries of export, the depth of the technical barriers to trade heterogeneity of new and high technology industries in developed countries export promotion effect is greater than the developing countries, for this research from the perspectives of high and new technology industry internationalization of dealing with the technical trade measures are put forward specific countermeasures.