The linear vibrating feeder is composed of a feeding tank, a vibrator, a spring support, and a transmission device. The vibration source of the trough vibratory feeding is the vibrator. The vibrator is composed of two eccentric pumps (active and passive) and a pulley. The drive shaft is driven by a motor, and the pulley on the drive shaft is combined with the driven shaft to rotate. The active and passive shafts rotate in opposite directions at the same time, and the tank body vibrates to make the materials flow continuously to achieve the purpose of uniform feeding and coarse screening.