To evaluate the quantitative relationship between the recovery process of permeability performance attenuation of permeable brick pavement and the particle size characteristics as well as the maintenance methods,14 pilot-scale devices were established, six particle size ranges(≤10, 10~20, 20~45, 45~75, >75 μm, and full gradation) and 4 particle mass concentrations (200, 400, 600, 800 mg/L) were designed. Meanwhile, six maintenance methods (no maintenance, sweeping, pressure washing, vacuum suction, sweeping combined pressure washing, and vacuum suction combined pressure washing) were employed to explore the characteristics of permeability evolution and associated influencing factors under 12 periodic inflow maintenance conditions. The results show that under the flow condition of 200 mg/L particle mass concentration and full gradation particles, the service life of permeable brick pavement without maintenance is about 3 a, and sweeping combined pressure washing is the most effective maintenance method. Under the condition of 200 mg/L particle mass concentration and pressure washing, ＞45 μm particles are more likely to cause clogging of permeable brick pavement than fullgradation particles and ≤45 μm particles. After 3 a of cumulative precipitation, the permeability rate of permeable brick pavement under particle size conditions of ≤10, 10~20, 20~45 μm can be maintained at (42.3±2.8)%, (54.3±5.9)%, and (48.4±4.9)% of the initial permeability rate. Under the condition of full gradation particles and pressure washing, there is no significant correlation between the degree of permeability attenuation of permeable brick pavement and the particle mass concentration during long term operation.