The invention discloses a quantitative mixing and discharging device for multiple nuts. The quantitative mixing and discharging device comprises a mixing table, wherein discharging funnels are arranged at the top of the mixing table; an electric air cylinder is arranged between every the discharging funnels; an air cylinder telescopic rod is connected to the driving end of each electric air cylinder; a material pressuring piston is fixed at the bottom of each air cylinder telescopic rod; a material pressing cavity is formed in the lower part of each material pressing piston; feeding electromagnetic valves are arranged on two sides of each material pressing cavity and are communicated with each material pressing cavity and the corresponding material storing cavity; each material storing cavity is positioned inside a corresponding material storing tank; the material storing tanks are fixed on two sides of each material pressing cavity; a discharging slope is arranged at the bottom of each material storing tank; a discharging opening is formed in the top of each material storing tank; a discharging electromagnetic valve is arranged at the bottom of each material pressing tank; a pressure sensor is fixed on the upper surface of each discharging electromagnetic valve; a material receiving funnel is arranged at the lower parts of the discharging electromagnetic valves; a control boxid arranged at the top central position of the mixing table. According to the quantitative feeding and discharging device disclosed by the invention, the nuts are discharged by using a plurality of discharging electromagnetic valves with the pressure sensors, and precise quantitative control is realized.