This document, based on various studies linking wellbeing to performance, try to explain the potential impact of the wellbeing at work on employee individual performance and its consequences. Through this study we have tried to compare the results of surveys and other official reports on this subject, which highlight in particular the correlations between well-being at work and individual performance of workers, as well as the conclusions Formulated in various studies carried out beforehand, while trying to determine their validity and more particularly to demonstrate the impact of well-being at work on the individual performance of a specific category of Moroccan executives working in a public organization devoted to the Scientific Research. We opted for an exploratory approach in order to collect new elements that may be specific to the Moroccan organizational context. The majority of the theoretical models previously developed by many researchers, linking well-being to work to individual performance, are valid according to our study. Although the survey we carried out allowed us to understand the different variables of our problem, it should be noted that the survey we conducted is non-exhaustive, given that the sample chosen is limited in relation to the Different stakeholders influencing the organizational world.