To provide a concealing cap in which a head plate is applied to an inner circumferential wall of a recessed hole along the whole circumference to achieve favorable appearance that can be easily removed.

This concealing cap 1A is provided with a disc-shaped head plate 2A, a pair of crest-shaped leg pieces 6A, and a lock cord piece 10 with a stopper part 12. In an outer circumferential surface of each leg piece 6A, a protrusion 8A is provided. For removing the concealing cap 1A from the recessed hole 22A, a position of a circumferential edge of the head plate 2A between the leg pieces is pushed into the recessed hole 22A, and the other side diametrically facing the position is lifted. By pulling the lifted part, the concealing cap 1A can be easily taken from the recessed hole 21A.