A new technique of rebar ring connection for composite beam-column joints is proposed.The mechanical properties of the joints, such as hysteresis, energy dissipation and stiffness degradation, are studied by low-cycle reciprocating loading tests on four specimens. Test results show that the steel ring connecting nodes under low cycle reciprocating load bearing capacity and stiffness degradation of cast-in-situ and bending of the anchor nodes. On this basis, ABAQUS was used to calculate and analyze the monotonic loading of the rebar ring joints with different bending heights. The parameter analysis results show that the overall stiffness and bearing capacity of the joints can be improved by increasing the bending height of the rebar ring.