At present,the continuous optimization and development of intelligent substations have become the foundation for expanding the operation scale of smart grids.In order to meet the requirements of intelligent management and energy conservation,the power monitoring system of substations has been widely applied in many local power grids.This paper delves into the practical application of power monitoring systems in intelligent substations,focusing on analyzing how the system can improve operational efficiency,ensure power supply safety,and combine various technologies to handle unexpected situations.The researches find that applying power monitoring systems to intelligent substations not only improves the accuracy of power regulation,but also effectively reduces operating costs.Such monitoring systems have excellent performance in terms of safety,stability,and intelligence.