This study aims to determine the effect of social support on person-
environment fit and employee affective commitment. The population of this
research is ASN employees who are regitered in the government service of
Indragiri Hilir Regency. Sampling using total sampling with a total sample of
142. ThR analytical technique used in this study is PLS Structural Equation
Modeling (SEM) which is operated through the SmartPLS program. The
results showed that social support had a positive and significant effect on
Person-environment fit through the mediation of Affective Commitment.
This shows that Affective Commitment mediates social support for Person-
environment fit on the object of research.