Prefabricated beam column and column foundation connecting structure

The utility model provides a connecting structure of a prefabricated beam column and a column foundation. The connecting structure comprises a prefabricated column, a prefabricated beam and a foundation slab, the prefabricated column comprises a screw rod, a connecting steel bar, a first vertical steel plate, a column vertical steel bar, a column stirrup and column bottom I-shaped steel; the precast beam comprises pre-buried first I-shaped steel, a steel strand, a second vertical steel plate, a beam horizontal steel bar and a beam stirrup; second I-shaped steel is welded to the prefabricated column, and a third vertical steel plate is welded to the end of the second I-shaped steel; the third vertical steel plate is in bolted connection with the second vertical steel plate of the precast beam; the column bottom I-shaped steel is welded on the foundation slab; the outer side of the column bottom I-shaped steel of the prefabricated column is further provided with an energy dissipation connecting assembly. The co