The GHRM concept has yet to be adapted to the construction sector, despite the fact that many other industries have previously proved its potential benefits. In the labour-intensive construction business, a comprehensive investigation of a unique GHRM paradigm could help to improve staff competences and commitment to sustainable operations. Several local green building issues, contribute to poor sustainability in the UAE, including green staff participation, green training and development, rewards, and health and safety. However, there are other significant green building construction projects in the UAE that are experiencing delays in completion or have been suspended or abandoned. However, the aim of this study intending to identify Green Human Resource Management (GHRM) and its impact on green building sustainability is critical. The questionnaires were distributed to the staff of Al Naboodah Construction Group (ANCG) in UAE. Since the population of this study is 1400 therefore, the sample size was 302. Thus, an aggregate 400 questionnaires were administered across the population. From this number, a total of 315 questionnaires representing 78.75 percent of the total questionnaires administered were retrieved. Out of this number, a total of 18 questionnaires were either partially filled or invalidated as a result of wrongful filling. Thus, therefore resulted in the total number of 297 valid questionnaires which were used for analyses. The analysis was conducted with the Smart PLS.As the main variables of the study are to weigh the impact of Sustainable Human Resource Management dimensions (Green Employee, Green Training & Development, Green Reward & Compensation and Green Health & Safety) and Sustainability Performance dimensions (Economy, Environment and Social) with mediation of Environmental Behaviour. The results show that Sustainable Human Resource Management dimensions have greater effect on Sustainability Performance. This study is important for stakeholders in the green building construction industry in general and for UAE stakeholders in particular, including: project management companies to identify current trends and requirements in the green building construction industry and to select workers according to these factors; to Al Naboodah Construction Group (ANCG) by helping them to develop better plans that can be integrated into the UAE 2030 Plan and Project Manager & Employees-to understand the scope, significance and relevance of the project management approach in the green building construction sector and how it can be implemented for UAE green building construction projects. Future research needs to provide empirical evidence while the Green HRM delivers the positive outcomes. Human resource play very important role in managing employee from entry to exit.