Nowadays, ageing in a healthy way is one of the greatest challenges of our era. The management of emotions is a powerful predictor of psychological well-being and health during all periods of life. However, to date, such evidence cannot be extended accurately to the older adult population since young adults have been the primary target of valid and reliable measures. Therefore the aim of this article is to analyse the validity and reliability of the Trait Meta Mood Scale (TMMS) in a sample of middle-aged and older adults, and its relation to personality traits and subjective well-being. Findings show that the TMMS represents a useful tool in examining social and psychological adjustment of older adults. The TMMS-22 will allow the analysis of emotional regulation development, explaining differences in psychosocial adaptation and perceived emotional competence. Finally, a TMMS for the older adult population is a complementary resource to the ability measures of EI and encourages increasing awareness of emotional abilities and self-evaluation in an individual.