In continuous production industry, to develop energy-saving technology, an essential modeling method should be selected to reflect both production process and the energy consumption simultaneously. In this work, we propose a novel coupling model for production and energy consumption. In this production-energy-coupled model (PECM), four flows are included, the material flow, the energy flow, the information flow and the emission flow. The material flow is abstracted from traditional technological documents about process description; the energy flow represents the any kind of energy transformation and consumption of all possible energy sources used in current factories, the electrical power, coal, diesel, steam, water etc.; the information flow is the running status, pre-alarm, alarm information from the production devices, and the control information from the controller in a distributed computer system(DCS) in the production field or a remote control signal from a central dispatch & control center in a big enterprise; and the emission flow is defined as any kind of emission coming out from the production at both middle production units or the final units of a whole continuous production line. Finally some specific conclusions of the production-energy-coupling model (PECM) are drawn respectively.