Fabricated concrete beam-column connecting joint

The utility model discloses an assembly type concrete beam column connecting joint which comprises a prefabricated column and a prefabricated beam, a first installation groove is formed in the side face of the top end of the prefabricated column, a second installation groove is formed in the lower surface of the end, close to the prefabricated column, of the prefabricated beam, and a supporting assembly is jointly arranged in the first installation groove and the second installation groove. And third mounting grooves are formed in the adjacent positions of the upper surfaces of the prefabricated column and the prefabricated beam correspondingly, and reinforcing plates are arranged in the third mounting grooves. The prefabricated column, the prefabricated beam, the supporting assembly, the reinforcing plate, the first pouring cavity and the second pouring cavity are arranged, the prefabricated column and the prefabricated beam are preliminarily and fixedly connected through the supporting assembly and the rein