The peak-load during summer is an important part of Henan Province’s energy and power supply，which is a major event and important matter for Henan Province’s healthy economic and social development. Based on the big data of Henan Province，this paper reviews and analyzes the new situation of power supply and demand in the province during the summer of 2022，systematically analyzes the power consumption characteristics of various industries and industries and the power characteristics of temperature-lowering loads，and summarizes the 10-characteristics “under the‘4-changes’of power supply”. On this basis，the supply side，demand side and other related level suggestions are proposed for the peak-load during winter and future power supply problems that may arise.