Method for fixing dressing tool and dressing tool

The invention provides a method for fixing a dressing tool and the dressing tool, which can prevent a pressing part of a pressing mechanism (swing clamp) arranged on a rotary table from penetrating into the dressing tool. The dressing tool is held on the rotating table of a rotating unit having a plurality of pressing mechanisms, each of the pressing mechanisms is disposed on the outer peripheral portion of the rotating table and has a supporting body including a pressing portion and a rotating shaft passing through the supporting body, the supporting body rotates when the rotating table rotates, and the rotating shaft rotates when the rotating table rotates. The dressing tool is provided with a pressing part which moves towards the inner side, and the dressing tool is provided with a substrate; and a trimming member which is disposed on one surface of the substrate and in which a plurality of retreat grooves which vertically penetrate the substrate and reach the outer periphery of the substrate are formed in