The invention relates to an electromobile charging management device with a billing function and application thereof. The device comprises an embedded controller, a printer, a card reader, a display, a touch screen, a power supply module, audio equipment, a power supply control module and a metering module, wherein the power supply control module is connected with the embedded controller through a CAN (Controller Area Network) interface, and the metering module is connected with the power supply control module through a 485 bus so as to transmit electric quantity to the power supply control module. Compared with the prior art, the invention has the advantages of realizing user identity identification, judging the validity of a card, metering charged electric energy, and billing and charging according to charging time interval and peak / valley electrovalence, is capable of identifying the power supply type (alternating current or direct current) through the power supply control system information acquired from the internal CAN, has friendly operation interface, and provides a user with operation platforms for charging mode setting, charging information query, charging bill printing and others operations.