Trolley to assist animals in walking, comprising two arms (12) with an oblong development that define the seating in which the animal is positioned and connected during use, two oblong rods (14) each of which connected to one of the two arms (12), and each provided in a lower end (14a) with a respective wheel (30), and a cross-piece (18) that defines the reciprocal distance between the arms (12), and connects the two oblong rods (14) in a position above the arms (12).
