The invention discloses a hidden well lid covering device. The hidden well lid covering device is characterized by comprising a well lid protecting cover and a protecting ring arranged around the well lid protecting cover in a sleeved mode. The well lid protecting cover comprises a circle of vertical cover wall and a bottom plate welded to the bottom of the cover wall, longitudinal and transverse steel bars attached to the bottom plate are welded inside the cover wall, the steel bars and the bottom plate are welded together, a plurality of pore plates are welded to the edge of the top of the cover wall, holes allowing the well lid protecting cover to be opened conveniently and engraved characters indicating the type of a well lid are arranged on the pore plates, and space used for paving pattern bricks or concrete or pitch is reserved in the cover wall. The hidden well lid covering device has the advantages of being simple in structure, convenient to use and attractive in appearance, effectively protecting the well lid against direct contact of ground vehicles or pedestrians, preventing the well lid from being crushed by the vehicles, and prolonging the service life of the well lid. The environment is beautified, the uniformity of a road is kept from the appearance, and the driving comfort degree can be improved. The device is used on a side pavement, and it can be guaranteed that a sidewalk for the blind is straight, smooth and uninterrupted.