This article makes a review of the notion of competence, its conception, classification, links with other notions following works by M. Davies (2000), V. Kučinskas, R. Kučinskienė (2000), R. Adamonienė and others (2001), L. C. Johnson (2003), V. Ivanauskienė, L. Varžinskienė (2003, 2004), B. Švedaitė (2004), R. Laužackas (2005), B. Miniotienė, I. Žindžiuvienė (2006), M. Andrašiūnienė (2007), L. Jovaiša (2007), V. Vaicekauskienė (2007), E. Martišauskienė (2008), D. Vyšniauskienė, R. Minkutė (2008). It also highlights the integral parts of social worker’s competences.