Aim: The objective is to describe the importance of building a training system for nurses in occupational medicine. A review of literature and learning about Occupational Health Services is a necessity for the existence of additional training for nurses in occupational medicine in Croatia. Trends in the world of health care, especially in occupational medicine, are focused on health and its preservation and promotion, and the World Health Organization (WHO) through its guidelines for the project - Health for all by the year 2010 (Eng. WHO - European Health 21 - WHO Regional Committee for Europe, Copenhagen, 1998) speaks about it. One of the most important recommendations of the WHO is the realization of Objective 18 - The development of all kinds of human resources in health. By 2010, all EU member states must ensure that all health workers in the health system, but also in other related areas, have the appropriate knowledge, views, and skills for the purpose of preserving and improving health. The WHO Declaration of Munich from 2000 set the guidelines for future education of nurses. School programs should be aligned with the needs of the profession and must be subject to quality control and evaluation. Specific areas of health, such as occupational medicine, require additional training of nurses – a specialization. Following the example of the EU, which developed specialist training courses for nurses in occupational medicine a long time ago, and which we are a full member of, it is necessary to introduce a training program that will provide the specific knowledge, skills, views, and completed skills required for the work of occupational health nurses in Croatia. Well trained and specialized nurses in occupational medicine significantly affect the preservation of the health of the working population and the success of the entire system.