To easily and safely attach and detach an equipment fitting panel having its top and reverse sandwiched between panels or between a panel and a channel base etc.

A plurality of box-shaped panels A each formed of a metal plate including a front plate 1 where electric/electronic equipment, communication equipment, etc., are fitted, and a U-sectioned left wall 2 and a U-sectioned right wall 3, and an upper wall 4 and a lower wall 5 enclosing the front plate 1 are stacked in a vertical direction, and the equipment fitting panels A have their left walls 2 and right walls 3 fitted to a member 14 for fixation, where opening portions 7 are formed in corner portions 6 of the left walls 2 and right walls 3 and at least one of the upper wall 4 and lower wall 5 is bent at the opening portion 7 toward the front plate 1 to form a linear edge portion 8. A finger is put in the opening portion 7 formed in the panel corner portion 6, which is pulled to this side to facilitate attachment and detachment of the panel when the panel is attached/detached.