Machine for vaccinating and/or inseminating farm birds characterized by comprising an access platform (2), intended to be located at ground level of the house where the animals (a) to vaccinate and/or inseminate are located, which it has several treadmills (3, 4) that guide the animals that climb onto it to a fourth actuation belt (5), and at the beginning of this actuation belt (5), there are guide means (6) that they force the birds to go through them one by one, and there are, on the actuation belt itself (5) or at the end of it, one or more adjustable positioning modules (7) that hold the birds individually immobilizing them, such elements being controlled through a control panel (8) with electronics and specific programmable software. (Machine-translation by Google Translate, not legally binding)