African swine fever is a viral disease of wild and domestic pigs. It spreads easily, rapidly and mortality can reach up to 100%. The causative agent of african swine fever is DNA virus that belongs to the Asfivirus gene and Asfaviridae family. It manifests itself in the form of hemorrhagic fever and the cure and vaccine do not exist. It first appeared in Kenya in 1910. and in Europe in Porugal in 1957. Due to their prevalence and large radius of movement, wild boars have an important role in the spread of this virus. In order to be able to monitor and prevent the further spread of African swine fever among wild boars, it is important to remove all carcasses that are found and collect data in the hunting grounds. There are no noted cases of african swine fever in the Republic of Croatia. In order to prevent the further spread of this disease it is extremely important to educate the public about the harmful effects of african swine fever and to implement biosecurity measures.