To address the shortcomings of the existing energy metering system,this project developed an intelligent energy collection and metering device for distributed,large-load and other complex power scenarios.This device not only provides real-time monitoring and data analysis of the user's electricity consumption,but also enables intelligent control of the electrical equipment according to the monitoring results to achieve efficient use of energy.At the same time,it is also necessary to demonstrate the application of this device in typical industrial,commercial and residential applications to demonstrate its superior performance and application value.In this way,the deep integration of metering devices and intelligent technology can be achieved,and strong and effective technical support can be provided for the effective interaction between energy metering and carbon market and the achievement of dual-carbon goals.