Abstract: In recent years, the export trade of agricultural products in the traditional way of trade is weak, but the export trade of agricultural products in the way of cross-border e-commerce is growing rapidly, which is worth analyzing. The academic consensus is that cross-border e-commerce can reduce trade costs and promote trade growth, but there are few literatures on the impact of cross-border e-commerce on agricultural export trade costs. Based on the customs data of cross-border e-commerce from China to 228 countries and regions around the world, this paper re-examines the classic theoretical propositions of international trade, such as economies of scale, geographical distance and language difference, from the level of export destination country. The results show that:(1) Compared with the traditional trade mode, the sensitivity of cross-border e-commerce agricultural export trade to the geographical distance and language barrier of the export market, as well as the economic scale of the destination country is greatly reduced; (2) The level of Internet development plays a significant role in promoting cross-border e-commerce agricultural exports; (3) According to the heterogeneity analysis, animal products are significantly affected by the export promotion effect of cross-border e-commerce mode. Developing countries are significantly affected by the promotion effect of cross-border e-commerce; The longer the geographical distance between countries, the more significant the role of cross-border e-commerce in agricultural exports.

Key words: cross-border e-commerce, trade costs, export of agricultural products, digitization of trade