Abstract: Data is the key element on the electricity trading platform, and the real-time monitoring of the data indicators is helpful to improve the market operation analysis ability and the platform stability. Aiming at the massive data indicators on the electricity trading platform, a set of data indicator monitoring method of the electricity trading platform is proposed. Firstly, among all kinds of the data on the electricity trading platform, the characteristics of data indicators are analyzed; Secondly, the data indicator model on the electricity trading platform is elaborated from the aspects of the indicator model dimension, the indicator metadata and the indicator formula calculation; Finally, the overall framework of the data indicator monitoring and the key technologies of the data indicator collection, the verification alarm, the sampling and the data indicator configuration display are studied. The research and development software based on the results of this paper has been deployed and put into operation. The practice shows that the technology effectively supports the flexible monitoring of the data indicators on electricity trading platform.