This systematic review aims to examine the main advances in subjective well-being among individuals with intellectual disabilities (ID) who are employed. This systematic review encompasses studies published from 2002 to the present, presenting their results in an organized manner. The search was conducted using the following databases: WoS, Scopus, SciELO, and ERIC. A manual search complemented this electronic search. The findings indicate that individuals with ID are among those whose rights are most frequently violated in terms of entering the labor market. Therefore, the subjective well-being of people with ID is closely linked to successful integration into the labor market and the development of positive social relationships within it. The barriers experienced by individuals with ID are also described as stemming from narrow, derogatory, and discouraging attitudes toward their work and experiences of discrimination. Finally, this article discusses potential guidelines for future research and the impact of understanding this response on successfully integrating individuals with ID into the labor market.