It refers to the rational allocation of human resources in a planned way according to the requirements of enterprise development strategy, and through a series of processes such as recruitment, training, use, assessment, encouragement and adjustment of employees, it can mobilize the enthusiasm of employees, give play to their potential, create value for enterprises and ensure the realization of strategic objectives of enterprises. It is a series of human resources policies and corresponding management activities of enterprises. These activities mainly include the formulation of enterprise human resources strategy, employee recruitment and selection, training and development, performance management, salary management, employee flow management, employee relationship management, employee safety and health management, etc. That is, enterprises use modern management science to plan, organize, command, control and coordinate a series of activities such as human resources acquisition (selection), development (education), retention (retention) and utilization (employment), and finally realize the development goals of enterprises.