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To meet the requirement that the light, thin and small product was conveyed steadily in modern automation product line，a new type line vibratory feeder driven by circular piezoelectric vibrator was proposed. The structure model of the vibratory feeder was designed. The working principle of the vibratory feeder was analyzed. The dynamic model of the vibratory feeder was established. Furthermore, a prototype of the vibratory feeder was developed and tested. The relations among voltage, amplitude and frequency were explored based on the test. The experimental results show that the new type vibratory feeder is characterized by less electrical energy consumption, lower work noise and more stable feeding compared with electromagnetic vibratory feeder，and it has faster feeding rate compared with the rectangular bimorph piezoelectric vibratory feeder.