Abstract: The waste polyester/cotton(P/C) blended fabric and waste polyester(PE) fabric were used to reinforce the cement based permeable concrete brick. The effects of fabric content and size on the compressive property, permeability and water retention property of composite permeable brick(CPB) were investigated. The results show that with increasing of fabric additive volume fraction, the compressive strength, compression toughness index and absorbed energy of CPB first increase and then decrease, and the permeability coefficient and water retention coefficient increase; with increasing of fabric size, the compressive strength, permeability coefficient and water retention coefficient of CPB decrease, the compression toughness index increases and absorbed energy has little change; when the added amount of fabric and fiber with equal mass are smaller, compared with CPB reinforced with waste fabric, the compressive strength of CPB reinforced with recycled fiber is lower but the compression toughness index, absorbed energy and permeability coefficient are bigger; when fabric additive volume fraction ≤2%, the compressive strength of CPB reinforced with P/C fabric(PC-CPB) is better than that of CPB reinforced with polyester fabric(P-CPB), the permeability coefficient and water retention coefficient of PC-CPB are close to those of P-CPB, but when fabric additive volume fraction >2% the results are contrary, and the compression toughness index, absorbed energy of PC-CPB are always better than those of P-CPB; CPB reinforced with 2% fabric additive volume fraction 3 mm×3 mm P/C fabric has the compressive strength 28.20 MPa, absorbed energy 1097.55 N·m, permeability coefficient 0.267 mm/s, water retention coefficient 43.40 g/cm², which are raised by 21.8%, 55.8%, 115.3% and 33.3% respectively compared with the ordinary permeable brick.