This paper will use the financial cost management theory to study pay centralized management in transnational commercial banks. We try to analyze the relationship between cost structure, organization structure and management performance to establish a model of centralized payroll management which is multi-level, balanced and efficient. Besides, we study the changes of cost structure such as wages, benefits and other administrative cost about payroll management caused by the information system. Based on above analyze, we will demonstrate that the new model can play an active role in reducing different types of cost.