The utility model discloses a novel metering device applied to high-voltage-side power supplying and low-voltage-side metering. The novel metering device applied to high-voltage-side power supplying and low-voltage-side metering mainly comprises a remote metering device and a main base station. The remote metering device comprises a current sensor, a measuring module, a management module, a displayer, a power supply and a communication module. The current sensor is formed by three current transformers; the current sensor is connected with the measuring module; the measuring module is in both-way connection with the management module; the management module is connected with the displayer and the power supply; and the management module is connected with a signal transmitter-receiver device of the main base station through the communication module. The novel metering device can simultaneously realize a function of direct electric energy metering and a function of data remote transmission; and by utilizing the novel current sensor technology and the networked real-time communication technology, the effects of composite, miniaturization and informatization of the high-voltage-side power supplying and low-voltage-side metering energy metering device are realized, thereby saving a lot of installation space and copper and iron materials, meanwhile, reducing installation and replacing time greatly, improving work efficiency, and reducing power failure time.