Objective/Meaning  The free trade agreement (FTA) was beneficial to the trade between the two countries and could promote the economic development.

  Methods/Procedures  The four indexes of TII, T, RCA and TCI were calculated by using the Excel function with the import and export trade volume of dairy products between China and New Zealand in the UN Comtrade database from 2000 to 2020. The index changes in the two periods before and after the signing of the FTA were compared and analyzed, and the gravity model was established by using the Stata software based on the trade data of the top five dairy import source countries with China from 2000 to 2020 in the UN Comtrade database, in order to study the impact of FTA on the dairy trade between China and New Zealand.

  Results/Conclusions  The results showed that the dairy products in New Zealand had great export advantages, and the signing of FTA has deepened the complementarity between the import trade of dairy products in China and the export trade of dairy products in New Zealand. The gravity model showed that FTA was positively correlated with the trade volume of dairy products between China and New Zealand, the difference in GDP between the two countries had a positive impact on the import volume of dairy products in China, and the transportation cost between the two countries had a negative impact on the import volume of dairy products in China. The trade volume of dairy products between China and New Zealand generally showed an increasing tendency.