Building electrical installation pre-plugging engineering junction box

The utility model discloses a pre-plugging engineering junction box for building electrical installation, and relates to the field of building electrical engineering. The building electrical installation pre-plugging engineering junction box comprises an engineering junction box body and a plug body, a shell of the engineering junction box body is fixedly connected with two sets of wire clamping bases and fixing bases, the wire clamping bases and the fixing bases are fixedly connected, the top of each fixing base is provided with a T-shaped clamping groove, and the top of each T-shaped clamping groove is fixedly connected with the plug body. And two groups of contact elastic sheets are arranged in the wire clamping seat. When the pre-plugging engineering junction box for building electrical installation is used and circuit connection is carried out in the engineering junction box main body, the plug main body is matched with the wire clamping seat and the fixed seat, so that the circuit connection quality is