The rapid development of the socio-economy has driven a continuous increase in electricity demand, placing higher requirements on the operation of the power system. Power transmission, distribution, and utilization engineering play a crucial role in the entire power system, with their operational efficiency directly affecting the overall stability of the power supply. This paper analyzes the application advantages of automated operation technology in power transmission, distribution, and utilization engineering, and examines specific applications of relevant technologies, such as holographic perception and real-time monitoring technology, edge computing and cloud computing collaboration technology, multi-source data integration technology, adaptive control technology, and network security defense technology. Based on this, strategies for the efficient automated operation of power transmission, distribution, and utilization engineering are proposed, providing valuable references for the long-term development of power engineering.