Abstract: In the light of low level of mechanization about crushing and processing link of Caragana，a Caragana forage crusher was designed.This machine could complete Caragana cuting，rupture and flattening and grass powder processing operation at a time.Working mechanism was discussed.Relationships between rotor speed，crushing，screening principle，grain size and screen aperture were analyzed.Special equipment for special Caragana pellet feed processing facilities was research and development in order to meet quality requirements of feed production of Caragana powder.