Sacrificing horses and placing them in graves are standard elements of Scythian funerary practices and recent archaeological projects in Mongolia provide additional evidence of this. These sites complement earlier investigations carried out at the site of Berel’ in Kazakhstan. The descriptions of the age, gender, colour and form of sacrifice of these horses allow a better understanding of the criteria of choice, enable a better understanding of why they were selected and underline the primordial place these horses enjoyed during the funerary ceremonies.