The present invention relates to a supporting device on a supporting pole, in particular for at least one wire for containing a row, which comprises a wire-holding element (1； 101； 201； 301) formed by a shaped thread-like body comprising a resting portion (2； 102； 202； 302) adapted to be removably rested, in use, on a first portion (3； 103； 203； 303) of the outer surface of the supporting pole (P1； P2； P3； P4) and supporting means (4； 104； 204； 304) for the containment wire extending from opposite sides with respect to the resting portion (2； 102； 202； 302), and a pulling and anchoring element (8； 108； 208； 308) formed by a shaped thread-like body comprising an engagement portion (9； 109； 209； 309) adapted to interact, in use, with a second portion (10； 110； 210； 310) of the outer surface of the supporting pole (P1； P2； P3； P4) opposite to the first portion (3； 103； 203； 303) and elastically deformable anchoring means (11； 111； 211； 311) which extend substantially perpendicularly and from opposite sides with respect to the engagement portion (9； 109； 209； 309) and adapted to cooperate with the second portion (10； 110； 210； 310) of the outer surface of the supporting pole ( P1； P2； P3； P4). The engagement portion (9； 109； 209； 309) of the pulling and anchoring element (8； 108； 208； 308) is adapted to engage and apply, in use, a pulling force on the wire-holding element (1； 101； 201； 301) adapted to removably anchor the wire-holding element (1； 101； 201； 301) on the first portion (3； 103； 203； 303) of the outer surface of the supporting pole (P1； P2； P3； P4) by means of the anchoring means (11； 111； 211； 311) cooperating with the second portion (10； 110； 210； 310) of the outer surface of the supporting pole (P1； P2； P3； P4).
