Device for inseminating animals comprising a tubular element (1) with a decreasing outer section broader at its rear end, hollow across all its length and with a chamfered front end (2) with rounded edges (3). The inner section of the tubular element (1) is circular (5) on a first stretch and elliptical (6) on a second stretch. The tubular element (1) has a removable grip (7) and the grip has a removable lamp. The device can be introduced in the vagina without having to lift the animal by its hind legs, avoiding the associated stress. The injection of the semen is efficient and does not traumatize the mucosa or cervix.
