Guy device for a pole driven into the ground, particularly a support pole (10) for vine-growing plants, comprising an anchoring member (14) driven deeply into the ground, a connecting member (15) whose lower end is hooked to the anchoring member (14) and whose upper end is connected through a tensioning member (16) to the pole to be guyed. Both the connecting member (15) and the tensioning member (16) are made of a metal wire or cable, or equivalent material folded so as to form respective closed annular elements, the wire of the connecting member (15) passing through a seat obtained in the anchoring member (14) and having the ends reciprocally knotted, and the tensioning member (16) being hooked to the connecting member (15).Cette invention concerne un dispositif damarrage pour un piquet enfoncé dans le sol, en particulier pour tuteur (10) de viticulture, comprenant un élément dancrage (14) profondément enfoncé dans le sol, un élément de raccordement (15) dont lextrémité inférieure est accrochée à lélément dancrage (14) et dont lextrémité supérieure est reliée au piquet à retenir par lintermédiaire dun élément de tension (16). Lélément de raccordement (15) ainsi que lélément de tension (16) sont faits dun fil ou dun câble métallique ou dun matériau correspondant plié de façon à former des éléments annulaires fermés respectifs. Le fil de lélément de raccordement (15) traverse un support ménagé dans lélément dancrage (14) leurs extrémités étant mutuellement attachées, et lélément de tension (16) est accroché à lélément de raccordement (15).
