According to an aspect of the present disclosure, there is provided a torch for thermal processing, the torch receiving power supplied from a power source device and performing thermal processing. Thetorch for thermal processing includes a display unit, a usage detection unit, an accumulated usage time measuring unit, and a display control unit. The display unit has a display screen. The usage detection unit detects whether the torch for thermal processing is being used. The accumulated usage time measuring unit measures an accumulated usage time which is the accumulated time when the torch is detected by the usage detection unit as being used. The display control unit causes the display unit to display the accumulated usage time.