This paper discusses the solution of 5G network intelligent power system based on power supply capacity peak technology, and analyzes its potential in improving energy utilization efficiency and reducing costs methods and results, demonstrates the important role of power supply capacity peak technology in 5G network, and proposes a hybrid energy solution integrating solar photovoltaic and traditional grid supply. This solution can effectively reduce the energy consumption demand of base stations, improve the stability of the power grid, and provide useful guidance and reference for realizing the energy efficiency of 5G base stations.