In order to comprehend the progress of the development of high-voltage electric energy metering technology and promote the application of new measurement equipments of high-voltage electrical energy, it is systematically summarized the construction principle, technical scheme, characteristics and application of the traditional and new measurement equipments of high-voltage electrical energy. Represented by high-voltage electric energy meter, it is reviewed the working principle and technical advantages of new measurement equipments of high-voltage electrical energy as well as new changes, new features and new advantages of the high-voltage electric energy metering technology that promotes and continuously advances with these measurement equipments. It also summarizes various calibration techniques of measurement equipments of high-voltage electrical energy, including comprehensive error evaluation, overall calibration and on-site/online calibration. It discusses the necessity of developing the overall calibration technology and explains the corresponding overall calibration device in detail, including structure, working principle and characteristics. Finally, the development trend of high-voltage energy metering equipment and its calibration technology is forecasted.