PURPOSE: A floor hinge case with an improved cover plate is provided to solve a problem the out of commission due to the corrosion of a floor hinge. CONSTITUTION: A floor hinge case with an improved cover plate comprises a casing body(111) and a cover plate(112). A hinge is accepted in the casing body. The casing body is buried in the ground and has an open top. The cover plate covers the top of the casing body. A cover through hole is formed on the cover plate in order to protrude a hinge. The cover plate is installed so that an edge can be bent to the bottom surface.
