The concrete long-term protective coating system is a product system made from epoxy sealing primer with excellent alkali resistance sealing performance, supplemented by epoxy mica iron intermediate paint with excellent shielding effect and acrylic polyurethane topcoat or fluorocarbon topcoat with excellent weather resistance and color retention functions. Featuring excellent corrosion and weather resistance and color retention performance, the product system is a reliable long-term concrete protection product system with a proven track record in the market, suitable for long-term anti-corrosion protection of concrete structures in various harsh corrosive atmospheric environments, such as cross-sea or coastal highways, railway concrete bridges, municipal viaducts, etc.