o enrich the design of prefabricated joints and improve their mechanical performance, a new type of prefabricated joint has been designed. Based on the test of the new prefabricated concrete frame joint, the prefabricated joint model is established, and the nonlinear behavior of the prefabricated joint under low cyclic reciprocating horizontal load is analyzed by finite element method. The skeleton curve, stress nephogram, failure process and failure mode of the prefabricated joint are obtained, and compared with the actual test, the rationality of the model is verified, and the extended parameter analysis of the prefabricated joint is carried out to explore its influence law. The results indicate that changes in the strength of steel sections have a relatively small impact on the horizontal bearing capacity and ductility performance of joints; The increase of concrete strength and beam-column stiffness ratio k is beneficial to the horizontal bearing capacity of fabricated joints, but the ductility of joints would be reduced. Reasonable beam-column stiffness ratio can improve the seismic performance of fabricated joints.