The article deals with the topical issues of searching and identifying legal indicators of the socio-economic category quality of life. The goals and objectives of social development, respect for and protection of socio-economic rights and freedoms of citizens, improvement of legislation in the study area are specified with the help of theoretical and applied methodological levels of legal analysts. The expediency of formulation and use of the legal criteria for the quality and standard of living is justified; it helps to identify the state as social and law-governed. The author focuses on the need to apply an interdisciplinary approach in the research of the category the quality of life, which is of mutual importance for legal, economic and, in general, socio-humanitarian science.