Abstract: In order to reduce the difference between peak and valley load effectively and improve load rate, a new idea for peak load shifting management is presented for smart grid, in which the electricity consumption pattern is recognized by using big data technology. In addition, this technology is also applied to peak load shifting management, and different peak load shifting strategies are considered as to the consumption characteristics of different users. The peak load shifting potential analysis based on pattern recognition can make up for the shortcoming of extensive peak load shifting management effectively.