This paper uses the China Customs Import and Export Database with the WTO Special Trade Concerns Database to establish a linear probability model of multidimensional fixed effects based on heterogeneity theory, and examines the impact of USTBT measures on Chinese enterprises export decisions and export valueThe study found as ollows: First, the negative impact of the TBT measures implemented by the United States on Chinas export decisionmaking and export trade volume is wide and deepBy dividing the structure of export products and the nature of corporate property, this paper further discovers that hightech products and private enterprises have received much greater negative impactSecond, the theory of heterogeneous enterprises is establishedLargescale enterprises can cope with the cost increase brought by TBT measuresIn addition, TBT measures implemented by the United States are not discriminatory against Chinese companiesBased on this, this paper proposes that China should take advantage of the manufacturing upgrade and the free trade zone strategy, strive to narrow the gap with the United States standards, and effectively use TBT measures to protect relevant industries in domestic