To provide a repairing material for easily restoring the bottom of a worn-out shoe to a horizontal shoe sole.

A part made of rubber, plastic and an FRP resin suitable for the shoe sole gradually thinning in the thickness in the shape of wear of the shoe sole is prepared, a quick drying adhesive is applied to the part, and then it is sealed in a cap or put in a vessel for maintaining adhesive strength. The shoe sole can be easily and simply repaired by pressing the part, after taking out from the vessel or the cap, against a shoe sole-reduced part.