With the constant change of the working environment of the electric energy meter, the dynamic detection method of the electric energy meter becomes more and more important. Based on the basic principle of testing and verification of electric energy meter, this paper analyzes the unique characteristics of dynamometer test and the key problems, and puts forward an effective dynamic testing method, which lays a theoretical foundation for the realization of dynamic testing scheme, and further promote the standardization and standardization of the testing and verification of the dynamic characteristics of the watt-hour meter, and provide a direction for improving the dynamic error performance of the watt-hour meter.