Aim: To substantiate the possibilities of developing a comprehensive system of psychosocial support for Ukrainians during and after the war through thedevelopment of an integrated model of psychosocial service provision in the community, which promotes cross-sectoral interaction and expands the possibilities of integrating and scaling up multiple levels of mental health interventions. Materials and Methods: The article is based on the use of bibliosemantic analysis of scientific works on the topic of mental health and mental health during the war. Conclusions: It is emphasised that in developing a comprehensive system of psychosocial support, it is necessary to: ensure accessibility of services for those in need; integrate services into the general health and social protection system; use a multisectoral approach, involving various organisations, institutions and professionals; train professionals to work in war conditions; develop and implement psychoeducation and psychological support programmes; monitor and evaluate the effectiveness of programmes. Particular attention is paid to psychoeducation as a technology that can be used at different levels of psychological intervention by both mental health professionals and other specialists involved in the provision of social services in communities. The spread of the impact of psychoeducational programmes will contribute to the development of community resilience in the face of social and psychological risks provoked by the war. A mechanism for scaling up the capabilities of the Technical Working Group on Mental Health and Psychosocial Support (MHPSS TWG), an association of leading international and Ukrainian NGOs specialising in mental health, established in Ukraine with the support of the WHO and the Ministry of Health of Ukraine, is proposed. The idea of creating a network of Resilience Centres in communities with the aim of forming a comprehensive system of psychosocial support at the state and community levels is substantiated.