This electric flat die pellet mill is designed with a rotating roller shaft structure. When the machine works, the pellet mill die is stationery and the rollers on top of the die are rotating. The squeezing force between the flat die and three rollers force the feedstock into the die hole and press them into cylinder shape. Pellets produced fell from the bottom of the flat die and are cut to uniform size by the cutting knives near the die. Then they are discharged from the pellet chute.