Big game fishing in the world is equally represented at sea and in fresh waters, and the Adriatic Sea occupies an increasingly important position on the map of the world's Big game fishing destinations. It is an extremely demanding sport, and catching large fish can take hours. It also requires large investments in the necessary tools such as fishing rods, reels (nylon or braids), basics with a minimum load capacity of 30 lbs, circular types of hooks and lures. As such, it is extremely suitable for the development of tourist destinations and more and more countries are including it in their offers. The most important species are tuna, swordfish and other larger fish of the open sea. Some of the fishing techniques used are spinning, trolling, drifting, jigging and those techniques along with the most important species in Big game fishing are described in the thesis. In recent years, international tournaments in Big game fishing have been held in Croatia at destinations such as Jezera, Vodice, Poreč, etc., and as a sport, it is becoming increasingly popular. The further development of this fishery will depend on market demand and future regulations.