With the continuous growth of power demand and the adjustment of energy structure,as one of the main power supply modes,the safety,efficiency and reliability of centralized control operation of thermal power plants are becoming more and more important.Power monitoring system with computer,communication equipment and other basic platform,help power enterprises to real-time monitoring of power production and supply process,speed up the reaction speed,improve production efficiency.This study takes the embedded power monitoring system as the main research object,introduces the terminal structure and important modules,and improves the reliability,real-time and flexibility of the power monitoring system through the optimization of its software modules,so as to promote the safe and stable development of the power industry.