From the viewpoint of empirical economic analysis, this paper uses the input-output method to study the coastal
ports of China's industrial structure and the relevance of throughput, and combines the method of regression analysis to analysis
the new round of industrial restructuring on the coastal the impact of port throughput. The results show that: This method makes
a true reflection of the industrial structure adjustment and coastal port throughput relationship between mathematical logic and
future development trends, the growth of the coastal port throughput by the industrial structure adjustment is slowing down, and
it will be stable after crossing knee point.