A fastener driving tool (1) providing a prolonged durability and stabilized fastener driving operation. The tool (1) includes a housing (2), a motor (31) disposed in the housing (2), a plunger (63) disposed in the housing and driven by the motor (31) for driving a nail (IA), a cable member (52) connected to the plunger (63) for pulling the plunger (63) from its bottom dead center where the nail is driven into a workpiece to a top dead center, and a drum (51) driven by the motor (31) for winding the cable member thereover. A cable member (52) is wound over the drum by a length greater than a linear distance between the bottom dead center and the top dead center. The cable member (52) is flexed or deflected due to own weight when the plunger is at the bottom dead center.