A sheet feeding apparatus in which vibration members of the running track type to form travelling waves are arranged in the vertical direction so as to face each other and a sheet sandwiched between them is fed by frictional forces is disclosed. In order to reduce the number of parts of a circuit to drive the upper and lower vibration members, the polarizing directions in the A-phase piezoelectric transducer portions of the piezoelectric transducers for the upper vibration member are opposite to the polarizing directions in the A-phase piezoelectric transducer portions of the piezoelectric transducers for the lower vibration member. Further, the polarizing directions in the B-phase piezoelectric transducer portions for the upper vibration member are the same as the polarizing directions in the B-phase piezoelectric transducer portions for the lower vibration member.