Fabricated beam-column connecting joint structure

The utility model provides a fabricated beam-column connecting joint structure, and belongs to the field of fabricated buildings. The joint structure comprises a prefabricated column and a prefabricated beam, two pre-buried vertical steel plates are arranged in the prefabricated column, a vertical steel plate is welded between the two pre-buried vertical steel plates, bolt holes are correspondingly formed in the upper ends and the lower ends of the vertical steel plates respectively, and long bolts transversely penetrate through the bolt holes; the end part of the precast beam is provided with an upper groove-shaped steel plate and a lower groove-shaped steel plate, groove openings correspond inwards, and longitudinal steel bars are welded in grooves; vertical end plates parallel to the cross section of the beam are welded to the outer sides of the two groove-shaped steel plates, and horizontal shear-resistant studs are welded to the positions, between the two groove-shaped steel plates, of the inner sides of