The invention discloses a feed premixing equipment, which comprises a lower hopper and a mixing bin. The lower hopper is installed at one end of the mixing bin and at the upper end. It has a stirring rod with helical blades on the stirring rod. The lower end of the mixing bin has an overflow chamber, and the upper end of the overflow chamber has a support portion, the support portion has a mounting portion, the mounting portion has a rotating plate, and the rotating plate is hinged on the mounting portion. The rear end of the mixing chamber has an extrusion chamber, one end of the extrusion chamber is connected with the mixing chamber, the extrusion chamber is gradually narrowed from one end toward the mixing chamber to the other end of the extrusion chamber, and there is an extrusion port at the end of the extrusion chamber away from the mixing chamber. The feed premixing equipment is compact in structure, ingenious in design, and easy to operate. Through the cooperation of the first mixing part and the second mixing part, various Chinese herbal medicines are premixed, which improves the uniformity of mixing. It is beneficial to the company's deployment, speed up production, and increase work output.