Abstract: An apparatus for fitting ear tags in animal ears (40) is described. Such devices serve to distinguish animals, especially pigs. According to the invention two magazines (9, 10) are provided for ear tag parts (18, 19), which slide down in the magazines (9, 10) through gravity. The one ear tag part (18) is removed from the magazine (9) by a punch (12), which is actuated by a pedal, pushed through the animal's ear and connected to the other ear tag part (19). The ear tag parts (18, 19) are held before this fitting operation in positioning means (31, 32) arranged below the magazines (9, 10) and arranged thereby in fitting positions.