The utility model relates to the field of electrical power system matching equipment and provides a novel electric power metering box which is exquisite in structure, good in use effect, and capable of effectively rainproofing, waterproofing and dustproofing, and at the same time, a good ventilation effect is achieved. The novel electric power metering box comprises a metering device, a box body and a box door. The metering device is fixedly connected in the box body; the box door is movably connected to the box body; and the box door is uniformly provided with a plurality of long-stripe-shaped ventilation holes. One side surface, facing the metering device, of the box door is provided with a plurality of waterproof assembles in one-to-one correspondence with the ventilation holes. Each waterproof assembly comprises a top plate, a vertical plate and an inclined plate. The novel electric power metering box has good ventilation and heat dissipation effects; and effective waterproof and rainproof effects can be achieved, and at the same time, the effects of quick flow discharge rate and no residue of water stain are achieved.