The main aim of presented study was to examine the relationships between satisfaction with life (Diener, 1984) and five identity dimensions distinguished by Luyckx (Luyckx, Goosens, Soenens, & Beyers, 2006, Luyckx et al., 2008): commitment making, identification with commitment, exploration in breadth, exploration in depth and ruminative exploration. The participants were 417 students and workers aged 19–27. The results indicated significant relationships between identity dimensions and life satisfaction and also showed the differences between students and workers group: in student sub-sample significant appeared to be the connection between exploration in breadth and satisfaction with life, and in worker sub-sample the connections of life satisfaction and exploration in depth. Moreover, in both sub-samples the significant links between satisfaction with life and ruminative kind of exploration were reported. it was also found, that identification with commitment mediates the relationship of commitment making and life satisfaction.