Abstract: An important part of the safe produTAion, marketing management, and economic operation of the power grid of eleTAric power enterprises is the eleTAric energy metering device. Strengthening the management conceTV of "metering is benefit" is an inevitable requirement for power supply enterprises to improve their marketing management, and it is also the key to the healthy and orderly development of eleTAric power enterprises. In this paper, through the analysis and research of various wrong wiring caused by the installation and wiring of traditional metering devices, a standardized secondary circuit module to prevent the secondary wiring of various types of eleTAric energy metering devices is developed, which can make the metering and installation personnel timely, convenient and intuitive. Install various types of eleTAric energy metering devices correTAly, and eliminate the power loss caused by various human-caused wrong wiring from the source. This article briefly analyzes and discusses this.