To provide a tool bag also usable for a stretcher that has a function as the tool bag suitable for transporting a ground hook which is essential to a maintenance and a check of a steel tower and a power line, as well as a function as the stretcher utilizing bar members constituting the ground hook when transporting an injured person.

A tool bag 1 includes a tool bag body 2 of substantially rectangular shape, and a piggyback strap 30 for bundling the outer surface of the tool bag body which is rolled in a state where an article to be accommodated is accommodated inside the inner surface of the tool bag body. The bag also includes bar member retaining portions 15 for removably holding the bar members, respectively, provided in two opposing edges of the tool bag body.