Subjective well-being is a broad area of scientific interest, which has been increasingly occupying the attention of researchers for the past thirty years. It refers to a general assessment of satisfaction with life, as well as emotional reactions and satisfaction with various aspects of life. Research on subjective well-being typically involves a scientific analysis of how people evaluate their life, both for the current situation, and for longer periods of time. The importance of subjective well-being research is illustrated by the data that indicates the advantages of experiencing positive emotions, such as fostering the quality of social relations, creativity, and psychological resources of the individual. This paper discusses the conceptual definition of subjective well-being, different theoretical perspectives and approaches, as well as the dominant topic in contemporary research.