This paper deals with the emergence of alcohol dependence and the characteristics of this addiction as well as the development of alcoholism in maritime affairs and its characteristics. Alcoholism is a chronic addiction to alcoholic beverages. It is manifested through a strong desire to drink, loss of control when consuming, symptoms of physical withdrawal and increased tolerance to alcohol. Alcohol addiction is a severe mental disorder because it leads to a pathological process, which changes the way the brain functions. As in most businesses, alcoholism is present in maritime affairs as well. Because of such a job description, a long stay at sea, and separation from family and friends, sailors often seek fun and comfort in alcohol. This creates addiction and various difficulties at work. In order to prevent the creation of addiction, shipping companies should conduct various trainings that will make employees aware about the serious consequences that alcoholism creates on the private and business level. Likewise, if the consumption of alcohol in companies is prohibited - seafarers should respect it and behave in accordance with the regulations in their workplace.