To provide a vibration method for selectively applying vertical and lateral vibration to a lens to be tested without remounting the lens (including a body) removed from a test table.

The test table 3 on which the lens 1 is mounted in a direction orthogonal to an optical axis L of the lens 1 to be tested is disposed, and on the back face side of the test table 3, a vibration body 5 applying vibration to the back face in a direction to cross the optical axis L is angularly rotated around the optical axis L of the lens 1 to be tested, and positioned to select and apply lateral and vertical vibration to the lens 1.