Smart Energy Meter (Three phase) supports basic parameter measurement functions such as active energy, voltage, and current. It also supports active reporting and passive reading of load curves and daily frozen data reporting. At the same time, it can also support remote real-time reading of meter status, remote switching on/off, and advanced features like breath alarm. The meter has an embedded high-performance LoRaWAN module, which supports the global LoRaWAN communication protocol. The target applications of this smart meter are smart cities, industrial electricity metering and smart charging piles, etc., which have great advantages especially in long-distance wireless.