The present invention relates to a red pepper particle size sorting device, and more specifically, a body frame having wheels installed on a bottom thereof； An elastic support part fixed to a lower end part so as to stand upright in the vertical direction on the main body frame； A sorting part coupled to the upper end of the elastic support part and supported by one side of the elastic support part in an inclined state, vibrating back and forth, and discharging the red pepper powder to the bottom and separating and discharging the foreign matter to the front； A vibration generating unit which shakes the sorting unit back and forth by using a power of a driving motor； In the red pepper powder particle size sorting device comprising a red pepper powder discharge portion and a foreign substance discharge portion respectively installed in the main body frame to separate and discharge the red pepper powder and the foreign matter selected by the sorting unit, The elastic support is composed of a leaf spring consisting of a plurality of layers of elastic metal plate, the coupling between the upper end and the lower end and the coupling member is installed between the main frame and the sorting portion, the sorting portion is selected to cover the hollow portion in the upper end of the rectangular frame formed hollow portion Lay the net, and screw the fixing frame to the square frame to secure the sorting net, and the supply hopper is coupled to the upper portion of the fixing frame, the discharge hopper is coupled to the lower portion of the square frame, both ends of the inside of the hollow frame of the square frame Spaced screw rods are screwed through the side wall, and the vibration generating unit installs a crank on one side of the upper part of the main body frame, and screwes one end of the adjustable screw rod to one end of the crank, and the other end of the screw rod Rotatably coupled to a connection portion formed at the lower end of the sorting portion, The r
