This comprehensive analysis delves into the application of Human Resource Management (HRM) practices within Tesco, a leading global retailer. It explores the purpose and functions of HRM, examining its role in workforce planning and resource allocation. The study investigates different approaches to recruitment and selection, evaluating their strengths and weaknesses. It further analyzes the impact of various HRM practices on both management and employees, highlighting their benefits in terms of organizational profit and productivity. The importance of employee relations and employment legislation in influencing HRM decision-making is also critically examined. Through specific examples and a range of theories and models, this research provides a detailed understanding of how HRM practices contribute to Tesco's success.