A device for restricting the movement of a four-legged animal (1), the device comprising: - a harness (2) for animals with straps (2.2) for the neck, straps (2.3) for the chest and a part (2.1) posterior that extends from the neck (5) of the animal to the proximity of the hip (6) of the animal. - bands (9) arranged around the hind legs of the animal; - a rope (11) arranged from each band (9) to the harness (2) for animals; where the elastic cord (11) is disposed between the respective bands (9) and the harness (2) for animals; characterized in that: - the device further comprises an actuator for tightening the elastic rope (11), whose actuator is arranged in the harness (2) of the animal; where the elastic rope (11) is disposed between the respective bands (9) and the harness (2) of the animal through the respective pulleys (8), where the two pulleys (8) are fixed to the harness (2) of the animal ; - the harness (2) of the animal further comprises a tubular guide (2.4) through which the elastic rope (11), rear straps (2.5) running from the rear part (2) near the rear legs of the animal and under the abdomen of the animal, where the two pulleys (8) are arranged at the respective ends of a means (8.1) of elastic cord, whose means (8.1) of elastic rope is attached to the harness (2) of the animal; - the actuator is attached to the front part of the harness (2) of the animal; - the actuator comprises an electric motor (10.1) provided to tighten the rope (11); - the actuator can be activated by a receiving unit (4.1) capable of receiving signals from a transmitting unit (4), where, when a signal is received from the transmitting unit of the signaling unit, the electric motor is operated (10.1) and the rope (11) is shortened, thus restricting the movement of the four-legged animal; - where, when the elastic rope (11) is loosened, it is stretched vertically along the animal's hind legs due to the elastic cord means (8.1).Un dispositivo para restringir el movimiento de un a