The energy management system is an integration of wireless communication technology, intelligent computing, and automatic control computer management system. Its design and configuration are based on the principles of usability, scalability, professionalism, and cost-effectiveness. The system focuses on monitoring the production process and establishes an energy usage management center. The system can make a comprehensive analysis on energy consumption and production performance by using the real time data on energy consumption (such as steam, water and electricity) and information of production status. The system can enhance energy efficiency and achieve the objective of green production through implementation of quantitative energy consumption control, management of technical operation, appropriate production scheduling, assessment mechanism and energy improvement projects.