To eliminate time and labor for a client to package an article to be repaired.

The packaging tool is obtained by combining a mat 1, an outer layer sheet 2, and a shock absorber 4. The mat 1 is an airtight and square sheet, is airtightly sealed, and is integrally laminated on the outer layer sheet 2 to configure a packaging area Wa. The packaging area Wa is an area where the article M is sandwiched and folded in double. A flap 5 formed in the extended portion of the outer layer sheet 2 becomes a cover-forming area Ca for closing a clearance in a folded portion of the mat 1. When air is removed from the mat 1 and the volume of the bag is reduced, the shock absorber 4 gets accustomed to the shape of the article packaged in the mat 1 and a filling density thereof increases, and the mat 1 is brought into tight contact with the surface of the article M.