Abstract: In this study, a novel enhanced rotational friction damper (ERFD) is proposed, which is applied to beam-column joints by increasing its rotation angle and thereby increases its energy dissipation capacity. To verify the feasibility of the working mechanism, the finite element model is established in ABAQUS software, and the sectorial friction damper (SFD) and the common rotational friction damper (RFD) with same friction condition are used as comparison models, so as to explore the energy dissipation mechanism of ERFD. The results show that the bearing capacity, stiffness and energy consumption of ERFD are significantly improved, increased by 17.63%, 12.54% and 14.53% compared with SFD, respectively. The stiffness and energy consumption of other three specimens with different friction surface arrangement are reduced by 29.38%, 58.67%, 70.76%, and 29.55%, 58.96%, 70.58%, respectively. The bearing capacity and energy consumption capacity are enlarged by 92.38% and 85.49% compared with RFD. It shows that ERFD has good energy dissipation capacity, and the overall mechanical properties of the friction surfaces arranged at all three points are the best, and the enhancement effect is remarkable.