Leadership plays a crucial role in organizational performance growth and individual career success. In the context of increasing global competition, the success of an organization is also closely related to the compound leadership of its managers. This study based on the theory of leadership effectiveness and proposed corresponding solutions for the current state of business line managers at ST Company. First, building upon ST Company’s business model and existing 5S leadership model, a 360-degree feedback questionnaire is designed to assess the leadership status of business line managers. Second, based on the results of the 360-degree survey, targeted leadership enhancement plans for business line managers are proposed. The survey results proposed key component of leadership enhancement in ST company targeted to business line manager, providing a reference for similar challenges faced by enterprises and organizations. Additionally, it offers practical guidance for application study of leadership in organization.