This paper introduces the key technologies in the company’s operations and diagnostic analysis methods, including data adjustment method, empirical modeling, structural analysis, trend analysis and forecasting techniques, early warning analysis techniques. Then, empirical models was built based on the operational data of State Grid, the performance of the company was assessed to help find the problems in operations. This study provided the basis for the enterprises to monitor and understand the influence of the market or other external factors on the implementation of the enterprise strategic objectives.