The invention discloses a permeable pavement structure of a sidewalk for an urban road reconstruction project. The permeable pavement structure of the sidewalk for the urban road reconstruction project comprises a surface layer (1), a leveling layer (2), a base layer (3), a cushion layer (4), high retaining horizontal curbs (5), a transverse UPVC pipe (6) and a longitudinal perforated UPVC pipe (7); and the surface layer (1) is located on the surface of the sidewalk the leveling layer (2) is filled below the surface layer (1), the base layer (3) is filled below the leveling layer (2), the cushion layer (4) is filled below the base layer (3), and the high retaining horizontal curbs (5) are located at the top, close to the edge of a facade, of the base layer (3). According to the permeable pavement structure of the sidewalk for the urban road reconstruction project, the disadvantage that when shops or shops exist outside the sidewalk and when the sidewalk is higher than the shops, passing in and out of pedestrians is inevitably affected is overcome; and the permeable pavement structure has the advantages that water can be drained to gutter inlet of a motor lane, passing in and out ofthe shops of the pedestrians cannot be affected, and the drainage requirements can be met.