Abstract: To reduce the damage of beam to column connections of traditional steel frame under strong earthquakes, a type of prefabricated beam to column energy dissipation connection based on rotational friction is proposed. Its configuration form and working mechanism are introduced. The low cycle reversed loading tests are carried out on the connection and the seismic performance of the connection is systematically studied. Also, its restoring force model is established. The research results show that the connection utilizes the rotation friction between steel plates and brass plates to dissipate energy, and its hysteretic curves are full parallelogram, confirming that the connection possesses excellent energy dissipation capacity. The strength degradation of the connection is minimal, and its mechanical performance is stable. The damage of the beam to column connection can be controlled effectively by rotational friction energy dissipation in the beam end. Under the action of low cycle reversed loading, the beam to column connection remains elastic and the energy dissipation is concentrated at the rotation friction hinge. The deformation mode of the energy dissipation connection can be divided into two stages. The first stage is the elastic deformation mechanism, while the second stage is the rigid body rotation deformation mechanism. The calculation results based on the restoring force model are in good agreement with the test results, validating that the proposed restoring force model can reasonably capture the hysteretic behavior of the energy dissipation connection under the cyclic reversed loading.