An electric-powered cutting machine includes: a housing; a plunger held by the housing and protruding outward therefrom, the plunger being driven to reciprocate; an operation member capable of being pivoted on the housing; and a blade holding mechanism disposed at a tip end portion of the plunger, the blade holding mechanism causing a blade to be detachably attached to the plunger, wherein the operation member includes an operation portion and an abutting portion, wherein a distance from the operation portion to a rotating fulcrum is longer than a distance from the abutting portion to the rotating fulcrum, wherein the blade holding mechanism is biased against pressing means and is capable of swinging, and the blade holding mechanism includes a rotating member capable of being pressed against a side of the blade, wherein the abutting portion abuts against the rotating member when the operating member swings, thereby the rotating member swinging against a biasing force of the pressing member, and wherein the blade is detachably attached to the plunger by swinging of the rotating member.