The invention discloses a feeding and discharging device for electronic part processing. The feeding and discharging device includes a working table, the working table is provided with a conveying belt, the conveying belt is provided with a plurality of placing devices, the plurality of placing devices are evenly disposed on the conveying belt, each placing device includes a placing box, the placing box is disposed on the conveying belt, one end of the placing box is provided with an opening, the placing box is internally provided with a groove, a sliding block is disposed in the groove, a spring is arranged in the groove, one end of the spring is connected with the sliding block, the other end of the spring is connected with the groove, the sliding block is provided with a squeezing plate, one side of the conveying belt is provided with a limiting plate, the two sides of the limiting plate are provided with a feeding port and a discharging port respectively, and the feeding port and the discharging port correspond to the openings on the placing boxes, one side of the feeding port is provided with a feeding device, one side of the discharging port is provided with a discharging groove, and a cleaning device is disposed on the working table. The placing devices cooperate with the arrangement of the limiting plate, the material positioning is facilitated, and the material feedingand discharging are facilitated through the arrangement of the feeding device.