A printed circuit board having a connection terminal which includes: an insulating substrate including first and second surfaces, and an end surface along an outline normal to an insertion direction of the connection terminal; at least one lead wiring layer formed on the first surface of the insulating substrate; an insulating protection film covering the lead wiring layer; at least one lead terminal layer constituting an end portion of the lead wiring layer, the lead terminal layer being formed into a strip, and having an end surface along the outline; a reinforcement body adhered on the second surface of the insulating substrate at a backside position of the lead terminal layer; wherein a distance between an outer surface of the lead terminal layer and an outer surface of the reinforcement body on the outline side is smaller than a distance therebetween on the lead wiring layer side.