To address the problems of aggregate spalling and strength degradation of pervious concrete under sediment-laden flow scouring in riverbank slopes, waterborne epoxy resin and polypropylene fiber were incorporated to improve the anti-abrasion performance of cement–steel slag–blast furnace slag-based pervious concrete. Twelve groups of specimens with different dosages of waterborne epoxy resin and polypropylene fiber were prepared. Effective porosity, compressive strength, anti-abrasion strength, and microstructure were tested and analyzed, and the composite modification mechanism of the two modifiers on the anti-abrasion performance of pervious concrete was investigated. The results indicated that the average effective porosity of the twelve groups of specimens is 17.6%. When the waterborne epoxy resin dosage is 0.5% and the polypropylene fiber dosage is 1 kg·m?³, the compressive strength and anti-abrasion strength reached their maximum values of 27.2 MPa and 11.4 h·cm²·g?¹, respectively, both increasing by more than 50% compared with the blank control group. After 90 min of scouring, the overall wear rate of each specimen ranges from 0.81% to 1.33%. Microstructural analysis shows that the bond between polypropylene fiber and paste is more compact and the crack-resistance capacity of the fiber is enhanced after the incorporation of waterborne epoxy resin, thus improving the anti-abrasion performance of pervious concrete.