A piezoelectric drive device comprising: a piezoelectric vibration module including a vibration portion and a transmission portion which abuts a driven portion , which is a rotor, and is adapted to transmit vibration of the vibration portion to the driven portion ; and a control unit , wherein the vibration portion includes a first vibration portion and a second vibration portion disposed to be stacked in a second direction (Y) intersecting a first direction (X) which is a direction in which the vibration portion is aligned with the driven portion , wherein the piezoelectric vibration module includes a first piezoelectric vibration module and a second piezoelectric vibration module stacked in the second direction (Y), the first piezoelectric vibration module being disposed in a pair so as to sandwich the second piezoelectric vibration module therebetween, wherein the first piezoelectric vibration module includes the first vibration portion and the second vibration module includes the second vibration portion , and the control unit is configured to cause the first vibration portion to perform lateral vibration to vibrate in a third direction (Z) intersecting the first direction (X) and the second direction (Y), and is configured to cause the second vibration portion to perform longitudinal vibration to vibrate in the first direction (X), wherein the control unit is adapted to cause the first vibration portion to perform composite vibration of vibration in the third direction (Z) and vibration in the first direction (X), and the transmission portion is configured to perform rotation vibration by combination of lateral vibration of the first vibration portion and longitudinal vibration of the second vibration portion , such that, in use, the driven portion is substantially moved only by the vibration of the first vibration portion , and the driven portion is held by both the first vibration portion and the second vibration portion . a piezoelectric vibration module including a vibration portion and a transmission portion which abuts a driven portion , which is a rotor, and is adapted to transmit vibration of the vibration portion to the driven portion ; and a control unit , wherein the vibration portion includes a first vibration portion and a second vibration portion disposed to be stacked in a second direction (Y) intersecting a first direction (X) which is a direction in which the vibration portion is aligned with the driven portion , wherein the piezoelectric vibration module includes a first piezoelectric vibration module and a second piezoelectric vibration module stacked in the second direction (Y), the first piezoelectric vibration module being disposed in a pair so as to sandwich the second piezoelectric vibration module therebetween, wherein the first piezoelectric vibration module includes the first vibration portion and the second vibration module includes the second vibration portion , and the control unit is configured to cause the first vibration portion to perform lateral vibration to vibrate in a third direction (Z) intersecting the first direction (X) and the second direction (Y), and is configured to cause the second vibration portion to perform longitudinal vibration to vibrate in the first direction (X), wherein the control unit is adapted to cause the first vibration portion to perform composite vibration of vibration in the third direction (Z) and vibration in the first direction (X), and the transmission portion is configured to perform rotation vibration by combination of lateral vibration of the first vibration portion and longitudinal vibration of the second vibration portion , such that, in use, the driven portion is substantially moved only by the vibration of the first vibration portion , and the driven portion is held by both the first vibration portion and the second vibration portion . <EOS>