Abstract: A piezoelectric optical micro-switch structure includes a base unit, a first cantilevered arm base, a first piezoelectric controller, a second cantilevered arm base, a second piezoelectric controller and an optical reflector. The base unit bears the first cantilevered arm base and the second cantilevered arm base each of which has a first cantilevered arm and a second cantilevered arm. The first piezoelectric controller and the second piezoelectric controller are correspondingly attached to the first cantilevered arm and the second cantilevered arm and used to control bending angles of the first cantilevered arm and the second cantilevered arm. Connected between the first cantilevered arm and the second cantilevered arm is the optical reflector. When one of the first cantilevered arm and the second cantilevered arm is bent, the optical reflector can change a reflective direction of incident light.