Nowadays to save consumption energy with the expected production output is well-known as one of necessary methods to lower the production cost in continuous manufacture industry. Systemic and fine management is changing into a new mode with the less and less energy-saving space relying on the traditional production device optimization for energy-saving can be reached. Energy-saving potential analysis acts a precondition to find the possible energy-saving space in the current production system of a continuous production factory or a company. And it is a challenge for the current factories to analyze the energy-saving potential just based on the information running of the different devices in a continuous production line without a feasible technical solution. Therefore, this paper analyzes the current main application systems in the view of informationization, and then proposes a generalized technical solution for energy-saving potential analysis in continuous production industry.