Based on the existing researches regarding prefabricated joints conducted domestically and abroad, this study proposed a prefabricated concrete composite beam- column joint connected by steel. Low cycle repeated loading tests were conducted to study the seismic performance of the proposed joint. The experimental results show that the stress can be effectively transferred between the steel joint and longitudinal bar of the precast beam. Moreover, the composite beam-column joint has good integrity. The plastic hinge of the joint is located near the welded part of steel and longitudinal bars in the beam, and the damage inflicted on the core area of the beam-column joint is small. The novel joint exhibits good energy dissipation capacity. Compared with the cast-in-place joints, the proposed prefabricated joint has higher bearing capacity but lower ductility.