Selecting the panel data of Yiwu City for from 2015 to 2023, gray correlation analysis was applied to explore the effect of the dry port industry on the city's economy. The results show that there is a high degree of correlation between Yiwu's dry port industry and the city's economic development, and Yiwu port's dry port industry has a promotional effect on the growth of the economy of the city to which it belongs. On the basis of this research conclusion, the corresponding development strategy with pertinence, feasibility and in line with the provincial situation are put forward, in order to provide reference and reference for the construction planning of dry port and the direction of regional economic development of the relevant cities.