To extremely and easily scrape even dirt on a sole, which is conventionally hardly scraped like mudd pressed into grooves on the soles of boots, for example, while wearing shoes.

A washing liquid pool part 4 for reserving cleaning liquid is formed from a sole plate 2 and a peripheral wall 3 erected around its peripheral edge part, and a lot of brush bristles 5 are planted on the upper face of a base plate 6 detachably arranged on the bottom face of the cleaning liquid reserving part 4. The top ends of brush bristles 5 are positioned lower than a liquid surface W of cleaning liquid for 1-2mm.