Topic is currently up to date due to the fact that the quality of working life for nurses, their psychological and subjective well-being affects not only nurses themselves but also others, because nursing is directly connected with caring for others. The goal of this scientific study was to find out the correlations between hospital nursing quality of working life, their subjective and psychological wellbeing. The study involved 56 medical nurses, aged between 25 and 65 years and with job experience of more than 5 years. The convenience method was used for the selection of the respondents, and all the nurses are from a single largest hospital in Latvia. Data abstraction was used: Quality of Nursing Work life survey, psychological well-being research survey, subjective well - being survey and the authors developed survey. The results of this study offer a wide range of answers on four study questions. Most of the medical nurses describe work life quality as satisfactory. Work life quality correlates positively with psychological well-being. The overall feeling of psychological well-being among the personnel is on a medium level. The respondents show higher scores for the ability to adapt to the environment and society, on the mutual relationship and sense of life scale. The respondents show lower scores on the autonomy, personal growth and self-acceptance scales. The respondents find relationship with other people important, and trust and well-being of others are essential for them. The study results allow make the conclusion that there is the correlation between quality of working life, psychological and subjective well-being. The results of this study could be used to optimise personnel's quality of working life as well as its psychological and subjective well-being.