The objective of this research is to study the link between perfectionistic leader and employee creative performance with mediating role of psychological distress and moderating role of trait mindfulness. Literature relieve that perfectionistic leader studied in different disciplined and less in the field of organization behavioral perspectives. Data collection for this study will be conducted in three time-waves, with the first wave focusing on the perfectionistic leader, in the second wave on the psychological distress and trait mindfulness, and the third time-wave focusing on creative performance. Using a positivist, and deductive research approach, questionnaires will be utilized to collect data from Pakistani Military Accounts Departments. The sample size for this study is 298. The estimation of the model was carried out with IBM SPSS as well as Structural Equation Modelling through AMOS. All of the necessary prerequisites and the hypothesized causal path were identified and significantly supported. As the gap analysis indicates that perfectionistic leaders and their impact on organizational behavioral outcomes are in high demanded area and required more research. Future directions including various sorts of perfectionistic leaders, culture, and personality qualities into the existing research paradigm. The study's limits and implications are also examined, which will be useful for HRM professionals, researchers, practitioners, and academicians in developing strategies and leaders to reduce disastrous effects and maximize favorable results in the workplace. This is the first study to look at the link between a leader who strives for perfectionism and creativity with mediating role of psychological stress and moderating role of trait mindfulness. It is most likely one of Pakistan's pioneering initiatives to explore the perfectionism in terms of public sector organizations. Thus, it would be added significant contribution in the existing body of literature.