A waterproof embedded core plate device includes an embedded core plate, a core plate carrier for placing the embedded core plate, a core plate bottom spring seat distributed at the bottom of the core plate carrier, a core plate inner side wall C-shaped spring sheet distributed at the side wall of the core plate carrier, a core plate process joint on the core plate carrier, a core plate breathing membrane set on the core plate process joint, a core plate cover plate buckled on the core plate carrier, a core plate seal card seat with a sealing strip set on the periphery of the core plate cover plate and a core plate top spring seat set on the core plate cover plate; the invention is well designed, compact and easy to use.