The deterioration of the economic and social situation in the country, the crisis of family relations and the increase in the number of single people in connection with this, prompt a scientific search for ways to improve the material support of the socially vulnerable population. One of the ways of such provision can be the institution of alimony. Military actions on the territory of Ukraine have become one of the reasons for the increase in the number of people who are deprived of guardianship and care by their closest relatives. Therefore, it becomes practically necessary to apply the legislation on alimony by other relatives. This article is devoted to the development of the legislative regulation of alimony relations of other relatives and covers the historical period from the time of imperial and soviet rule on the territory of Ukrainian ethnic lands to the present. During the preparation of the article, were studied main historical documents, such us Austrian Civil Code of 1811, the Code of Laws of the Russian Empire of 1832, the Assembly of Little Russian Rights of 1804, the Code of Laws on Family, Guardianship, Marriage and Civil Status Acts Ukrainian SSR 1926, the Marriage and Family Code of the Ukrainian SSR 1969 and the current Family Code of Ukraine 2002. It has been established that the alimony obligation of other relatives on the territory of Ukrainian lands during the time of the imperial power was not legislated, but existed in the form of customs. The right to alimony from other persons, except relatives of the first degree of consanguinity, was legislated only in the post-war years. Based on the research of regulatory legal acts, the subject composition of this type of alimony relationship at various stages of historical development and the present is described and qualified. The peculiarities of the occurrence of alimony obligations for all obligated persons are described in detail: grandfather and grandmother, great-grandmother and great-grandfather, brother and sister, stepfather and stepmother, stepson and stepdaughter, heirs, actual educators and pupils. During the scientific research of normative legal acts, all the necessary conditions and grounds necessary for the emergence of alimony relations between other relatives were established and described.