<p>Periodic porous structures have great potential applications in aerospace, energy engineering, and the auto industry, This is own to their multifunctional properties, such as vibration attenuation and energy absorption. However, their applications are limited by the fixed damping characteristics inherent to the structures. Therefore, this paper proposes a damping-tunable particle-impacted tri-periodic minimal surface (TPMS) structure for damping. This innovative study investigates the influence of TPMS structural parameters on the damping ratio of particle dampers, while also considering factors such as TPMS particle size and packing density. The tunable damping characteristics of TPMS particle impact dampers(TPMS-PID) are investigated and validated. The damping performance of TPMS-PID is verified by the cantilever beam experiment system. It is indicated that the damping ratio of the TPMS-PID cantilever beam system (TPMS-PIDCBS) increases with a decrease of particle diameter and the TPMS design parameters. Under different particle diameters and TPMS structure design parameters, the damping ratio increases first and then decreases as the filling rate increases, reaching a maximum at a 70% filling ratio. To validate the vibration reduction effectiveness of a type of TPMS-PID with structural design parameters of c = 0.1, two exciting methods of harmonic and linear sweep excitation are used. Under the harmonic excitation experiment, vibration reduction rate exceeding 79% was achieved. Under linear sweep excitation, a vibration reduction rate exceeding 79% was achieved. This confirms the superior and robust performance of the proposed TPMS-PID.</p>