Based on the traditional steel tube lead damper,a new type of steel double-core damper was obtained through improvement.Based on this,the ABAQUS finite element simulation software was used to simulate the seismic performance.The simulation results show that the limit load of the new steel double-core damper is 183kN,the limit displacement is nearly doubled,and the hysteresis curve area obviously increases compared with the single lead damper.And the equivalent damping coefficient increases by 15%.The simulation results show that the energy consumption is better.