Detachable rod-holder device with vertical and horizontal regulation for a boat characterized in that it consists of: - a base intended to be fixed on an element of the vessel by means of fixing means, whose shape is approximately cylindrical and which in its upper base has a cylindrical hole; - a body, whose shape is that of a solid of revolution and whose lower portion, of approximately cylindrical shape, is intended to be inserted loosely into the cylindrical hole of the base and which can rotate with respect to the longitudinal axis of the body, the the upper face of said body has a diametral and vertical groove, the upper portion of said body has a first hole that passes through said diametrical groove, whose blind portion is threaded and whose axis is approximately perpendicular to the axis of revolution of the body; - a tubular support, which is intended to be inserted in the rear portion of the rod, its external cylindrical surface has a plate arranged radially, projected towards the outside and intended to be introduced into the diametral groove of the body, said plate it has a through hole and is connected to the aforementioned body by means of an axis that is inserted in the first hole of the body and in the through hole of the plate, the front end of said shaft is threaded, the rear end of said shaft is joined removably a steering wheel to facilitate the threading of the shaft in the blind scraped portion of the first hole of the body; - a first device for locking the axial position of the body in the base and allowing the rotation of said body with respect to the longitudinal axis of the cylindrical hole of the base; - a second locking device at will of the rotation of said body with respect to the longitudinal axis of the cylindrical hole of the base and - a third blocking device at will of the rotation of the tubular support with respect to the axis of connection between the plate and the body. (Machine-translation by Google Translate, not legally bin