Globalisation affects not only national states but also their trade flows. The aim of this article is to assess the efficiency of the Slovak agri-food trade in 2006-2015 in the context of globalisation. The article assesses the efficiency of selected food-processing industry commodities. The efficiency of commodities is measured by the Revealed Comparative Advantage Index (RCA) and the Grubel-Lloyd Index. The article was elaborated based on the data from the databases of the Statistical Office of the Slovak Republic and data from Zelené správy (Green Report) of the Ministry of Agriculture and Rural Development of the Slovak Republic. The commodities are sorted according to the HS4 items of the unified system of customs tariffs, with a focus on agri-food commodities. 0001-2400. Efficiency is understood as the ability of the economy to produce goods and services that succeed in international trade, thereby guaranteeing an increase in real income for the population when they rationally use the production factors and fulfil other social and environmental aims. It is a country's ability to combine comparative advantages/ disadvantages with current market and government imperfections in international trade.