This study aims to analyse intra-industry trade in the manufacturing industry sector with the EU countries, where Turkey has the most trade. The period of the study is 2000-2020. The countries examined are Germany, France, Netherlands, Italy, Spain, Poland, Belgium-Luxembourg, Sweden, Romania, Bulgaria, Greece, the Czech Republic, Portugal, Austria, Ireland, Denmark, and the UK. In the analysis, the Grubel Lloyd index was used, which is one of the widely applied static measurement methods in the literature. The study discusses intra-industry trade of manufacturing industry products according to the 3rd revision of the Standard International Trade Classification. According to the analysis results, when Turkey’s foreign trade is evaluated on a sectoral basis, it has been observed that high intra-industry trade is realized in product groups with low added value. Another result obtained is that intra-industry trade with the UK, Germany, France, Poland, Bulgaria and Romania reached high values. Keywords: Intra-industry Trade, Manufacturing Industry, Grubel Lloyd Index JEL: B17, F0, F5, F11, F14