The disclosed stripping/crimping device for electrical wire comprises a stripping mechanism and a holding/feeding mechanism added after the fact to a commercial terminal-crimping press already installed at a work site. The holding/feeding mechanism is provided on a front part of a mount, which fixes the terminal-crimping press in place, and moves reciprocally in the left-right direction. This makes it possible to compactly (along the aforementioned mount) implement the ability to hold the front end of an electric wire and feed said front end to a terminal-crimping position for a terminal-crimping applicator attached to the terminal-crimping press. The stripping mechanism is provided on the left or right side of the mount and moves reciprocally in the forward-backward direction. This makes it possible to compactly (along the mount) implement the ability to strip the front end of a wire, which is held in an operator's hand and extends in the forward-backward direction, in the forward-backward direction.