Device (1) for forming the branches of a tree (2) characterized in that it comprises a flexible body (3) open in the form of a mesh forming a volume whose interior is adapted to enclose the branches of the tree (2) and guide its growth, being topped bottom with an adjustable opening to allow its adaptation to the shape of said branch. (Machine-translation by Google Translate, not legally binding)1. Dispositivo (1) para conformar el ramaje de un árbol (2) caracterizado porque comprende un cuerpo (3) flexible abierto en forma de malla que conforma un volumen cuyo interior está adaptado para encerrar el ramaje del árbol (2) y guiar su crecimiento, estando rematado inferiormente con una abertura graduable para permitir su adaptación a la forma de dicho ramaje.