Abstract: In recent years, China's power energy efficiency monitoring business has rapidly developed along with the rise of smart grids to establish an effective power energy efficiency monitoring system, timely master power consumption data of power companies and residents, achieve scientific energy efficiency analysis, and based on internal operating equipment data , Conduct user energy efficiency diagnosis analysis, provide users with energy use guidance, reduce user energy costs, provide accurate enterprise energy efficiency benchmarking and assessment services, analyze customer electricity usage behavior based on electricity usage, and generate and push customer energy analysis reports. It is necessary for users to adjust their electricity habits and promote the development of energy-saving businesses in enterprises for power companies, residents, and power grid companies. In this paper, the evaluation model is established using the ladder-based comprehensive energy efficiency assessment method, and the algorithm in the model is introduced in detail.