The aim of this paper is to present research examining the effectiveness of mindfulness interventions with children and provide an overview of the main conclusions from these studies. The modern way of life and external stressors significantly impact children's mental health, leading to an increasing number of mental health problems during this developmental period. Accordingly, there is a need for the implementation of preventive programs and strategies for promoting mental health in early stages of development. Researches have shown that the implementation of mindfulness-based programs in educational institutions and clinical settings with children can have positive effects on their physiological, socio-emotional, and behavioral functioning. Foreign researches have identified small, medium, and large effect sizes on various constructs, and no negative effects of mindfulness interventions have been found. Mindfulness practice involves consciously observing one's own feelings, thoughts, and bodily sensations without judgment. It fosters accepting stressful events as challenges rather than threats, and develops children's ability to cope with future stressful and challenging life situations. Given the growing popularity of the mindfulness approach and the interest in its application in educational settings, this paper provides insights into the benefits of such programs and encourages further research and implementation of mindfulness interventions to promote resilience and children's mental health.