Purpose: This study's objective is to assess this relationship in the context of the banking industry in Iraq. The human resources management practices (HRMPs) Theoretical framework: in this study included recruiting and selection, training and development, performance appraisal, compensation and reward to testing relationship HRMPs. Design/methodology/approach: in this study; We analysed by used a quantitative approach, and 246 employees were selected as a sample and given a questionnaire. The SPSS software was used to examine the data that were obtained from the questionnaire. Findings: The study's findings revealed a variety of hypotheses and conclusions, including the following: competitive advantage (CA) is positively impacted by recruitment and selection. CA is considerably and significantly influenced by compensation and reward. Similar to how performance appraisal do, they significantly boost CA. However, it is important to note that training and development have a significant negative effect on CA. Research, Practical & Social implications: Overall, it was shown that the Iraqi banking sector is benefiting from increased interest in HRMPs by enabling CA. Originality/value: The Previous studies indicate that the number of publications in the HRMPs area is growing, Our current study attempts to bridge the research gap in this field, and that the originality in the research comes from the application of these variables in the Iraqi banking sector.