The invention discloses a novel integrated junction box for a three-phase shunt electric energy meter. The novel integrated junction box comprises a voltage connection module, a current connection module, a neutral line connection module, a voltage fuse protection connection module, a 485 communication and uncapping connection module, a spare fuse, a spare connector, a current socket special for field calibration, and a junction box body, wherein the spare fuse is arranged at one end of the surface of the junction box body; the spare connector is arranged at the other end of the junction box body; the current socket special for field calibration is arranged in the middle of the surface of the junction box body; the voltage connection module is arranged inside the junction box body; and thecurrent connection module is arranged on one side of the voltage connection module. Voltage output and current short-circuit are interlocked, a sliding connecting piece is removed, complicated operations performed according to operating procedures are not needed, and the condition that open circuit of a current transformer and short circuit of a voltage transformer are caused by operation errorsis avoided, so that the whole operation and recovery process is safe, accurate, reliable and rapid.