The invention discloses straw smashing equipment. The equipment comprises a power machine and a smashing device, the smashing device is fixed to the tail of the power machine through a rack, and a smashing roller device is rotatably connected between the two corresponding sides in a shell. A material stirring device is rotationally connected to the position, close to the smashing roller device, between the two corresponding sides in the shell, the position, located at the end, between the smashing roller device and the material stirring device is in transmission connection through a chain transmission assembly, and a baffle is rotationally connected to the position, close to the bottom, of the inner wall of the shell. The invention relates to the technical field of agricultural machinery.The straw smashing equipment achieves the effects of winding prevention and high adaptability, straw can be prevented from being wound on a roller, the situation that the straw is stuck can be avoided, smashing is facilitated, meanwhile, the service life of the equipment is prolonged, the straw smashing equipment can adapt to accumulated damp straw, limitation is reduced, smashing is more thorough, and the using performance is improved.