In this study, sewage sludge (SS) is introduced as an auxiliary material. The part of the cement and water were replaced in concrete with inorganic components, and the organic components in sludge served as the substrate for microbial fermentation to produce pores. Porous SS-based pervious concrete (SPC) was produced. SPC samples with different amounts of SS were tested to determine their compressive strengths (CSs), splitting tensile strengths (STSs), porosities, and permeabilities. The results showed that using SS as a substitute for part of the cement to produce pervious concrete (PC) is viable and that incorporating an appropriate SS amount can improve the concrete microstructure, thereby improving the mechanical properties of SPC. Moreover, this method did not significantly negatively influence the SPC permeability. When the sludge concentration was 8 %, the mechanical properties and microstructure were optimal. Compared with the control group, the CS and STS of SPC increased by 55.6 % and 36 %, respectively, at a sludge content of 8 %. The specific surface area of SPC significantly increased through microbial fermentation and sludge pore formation, providing excellent conditions for pollutant adsorption and purification in rainwater treatment. Through toxicity characteristic leaching procedure testing and economic analysis, the precipitation of heavy metal elements was far lower than the SPC environmental standard limits when SS was added. An economic analysis concluded that the addition of SS can reduce material costs.