Electro-vibrating feeder is consisting of material feeding slot, vibration exciter, spring bearing, transmission and etc. The vibration source of electro-vibrating feeder is vibration exciter; vibration exciter is composed of two eccentric shafts (driving shaft and driven shaft) and gear pair, the motor drive the driving shaft through triangular belt, then the cog of driving shaft will engage the driven shaft to rotate, the driving and driven shaft contra rotation In the same time to make the slot vibrate, and the materials will be flowed continuously, thus to achieve the purpose of materials transmit.