Holistic approach to children’s right to health requires that a disorder-oriented approach and a health promoting perspective have to be considered as equal priorities. However mental health policy in many states is still oriented more toward biomedical treatment of disorders rather than preventive and promotional measures. In this paper we argue that successful implementation of health promoting approach can be achieved through sustainable investment in sectoral cooperation, capacity building and political will. Using Lithuanian mental health policy example we illustrate how the shortcomings affecting each determinant impede progress in prioritizing health promotion perspective and thus holistic approach to children’s right to health. Our findings suggest that application of holistic approach in Lithuania might face many challenges and obstacles, with regard to high numbers of vulnerable children, quality of support services for children and families, and still minimal and fragmented interests of policy makers in improving children’s mental health.