The invention discloses a community power consumption monitoring device, which comprises an electric quantity displayer and wiring ports. The electric quantity displayer is arranged at the upper portion in an ammeter; a display lamp is arranged at the left side of the electric quantity displayer; a bill displayer is arranged under the electric quantity displayer; a rotation dial plate is arranged under the bill displayer; and the wiring ports are arranged under the ammeter. Compared with the prior art, the community power consumption monitoring device has the beneficial effects that the community power consumption monitoring device is scientific and reasonable in structure, and convenient and safe to use; a bill conversion device can directly convert the electric quantity into an electric bill, which is transmitted to a central controller processing device; the central controller processing device sends the electric bill of each household to a mobile phone of an owner and a power supply bureau receiving device directly through a local area network; and the ammeter is provided with the bill displayer, so that every member in the household is allowed to know the bill information directly by watching the ammeter.