The invention discloses a vibrating discharging device on a color sorting machine, and relates to the technical field of color sorting machines. The vibrating discharging device on the color sorting machine comprises double-row discharging hoppers, spring supporting assemblies, a motor base, vibrating motors, shock absorption bases, a discharging hopper supporting frame, fixing bases, reinforcingconnecting frames, spring limiting rings, first shock absorption supporting springs, upper fixing plates, second shock absorption supporting springs, bottom antiskid plates and foundation bolt fixinggrooves. The shock absorption bases are arranged on the four corners of the bottom of the discharging hopper supporting frame, the fixing bases are arranged on the four corners of the top of the discharging hopper supporting frame, and the spring supporting assemblies are arranged on the tops of the fixing bases. The double-row discharging hoppers are arranged on the tops of the spring supportingassemblies, the reinforcing connecting frames are arranged on the lower surfaces of the double-row discharging hoppers, and the motor base is arranged at the bottoms of the middles of the double-row discharging hoppers. According to the vibrating discharging device on the color sorting machine, the two vibrating motors which are opposite in rotating direction are adopted to provide the power, andmaterials can be rapidly and uniformly discharged in a high-frequency and small-amplitude mode. The vibrating discharging device on the color sorting machine comprises a shock absorption structure, and is low in noise, long in service life, simple in structure, low in cost and stable in performance.