Using the Psychology of Working Theory as a pillar, this study has aimed to examine the impact of decent work (subscales: interpersonal and physical safe working conditions, adequate health care, adequate compensation, hours that allow for free time and rest, and lastly, organisational values) directly and indirectly through the use of mediators namely, survival needs, social contribution needs, and self-determination needs. Moreover, the study also assessed the influence of the subscales of decent work on the mental health of female carers in Mauritius. Quantitative data was collected from 136 working women working in care homes or acting as carers for individual households through a questionnaire adopted from previous studies. The data analysis was done by use of SPSS 26.0. The findings showed that there were a positive and significant relationship between physical and interpersonal safe working conditions, access to adequate health care, and organisational and family values and mental health of female carers. In addition, the result could imply that there was a positive relationship related to survival needs, satisfaction needs and self-determination needs among individual carers and their mental health. The influence of the subscales of decent work on mental health showed a strong positive correlation but two factors namely, adequate compensation and hours that allow for free time and rest had low correlations. Overall, the findings suggested that decent work indeed contributed positively to the mental health of the female carers. Decent work promotes good psychological well-being of female workers because work is pivotal in the attainment of individual needs such as survival, social contribution, and self-determination. Implications for practice and future research are discussed.