Working with children, youngsters, adolescents and families is very complex, responsible and stressful job and workers need professional support. The aim of this qualitative survey was to make research and analyse the importance of supervision in the field of working with children, youngsters, adolescents and families from perspective of professionals from social care system and NGOs. Fifteen experts working with children, youngsters and families in the Zagreb Social Welfare Centres, NGOs like the Children First Organisation, the Codim Organisation as well as the Velika Gorica Centre for Children, Youth and Family have conducted the research. All of them share the experience of both supervising and working with children, youngsters and families. The participants of this research state the important contribution of supervision in the field of working with children, youngsters, parents, more difficult and complex family cases as it keeps the quality of direct practical experience, helps in obtaining and preserving professional competences, taking care of mental health as well as in preventing the burn-out syndrome while providing the feeling of ease and relief. According to the results, superviosion in the field of working with children, youngsters and family is the way to ensure the quality of work performance.