The visiting-nurse service is part of the primary health protection and in the primary prevention it carries on measures for the preservation and advancement of health and prevention of diseases. The visiting nurse is the head of the primary prevention in health protection. Visiting nurses conduct health education with all age groups and their work in primary prevention should be assessed in view of the goals they want to achieve by their work and activities. Research objective: To examine the health and non-health workers’ attitudes to the importance of visiting nurses’ work in the primary prevention with regard to their working position, length of service, sex and professional qualification. Respondents and methods: The research was conducted among 118 respondents employed at the Istria Health Centres. There were 84 health workers and 34 non-health workers. Regarding their professional qualification, most of them had a secondary school degree (51), advanced specialist training (32) and university degree (35). When it comes to age, most of the respondents belonging to the group of health and non-health workers were in the range between 31 and 50 years of age (66). The standardised PHN Survey instrument by Kevin Grumbach was used in the research. Results: When it comes to sex, there is not a significant difference in the health and non-health workers’ attitudes to the importance of the visiting nurses’ work in the primary prevention, but eight statements show a statistically significant difference considering their professional qualification. Equally positive are the attitudes of both health and non-health workers. Conclusion: Both health and non-health workers have a positive attitude to the importance of the visiting nurses’ work in primary prevention.