Since February 24, 2022, Ukraine has been experiencing the full-scale Russian-Ukrainian war, which was a continuation of armed conflict that started in 2014. Currently, nearly 18% of Ukrainian territory is occupied, and a large part of the infrastructure has been destroyed. Millions of people have been affected by the war, becoming refugees, temporary shelter seekers, or internally displaced persons (IDPs). Ukrainian social workers were among the professionals who immediately began supporting those affected by the war’s atrocities from the first days and continue to do so. This chapter considers current issues of social workers’ activities and social work development as a field of professional activity during the acute Russian-Ukrainian war. The increasing number of governmental and nongovernmental social agencies providing community-level social services to those in need, the growing number of employed social workers ready to work in crisis conditions, increasing number of clients and appearing of new categories of them, development and implementation of educational programs for social workers’ training to work in new conditions are key issues that Ukraine is facing at present.