To provide an excitation apparatus which can accurately transmit vibration of a vibration exciter in the excitation direction and can be used for a long term.

The excitation apparatus comprises a vibrating table 20 in which a test piece is installed, an exciter 30A for vibrating the vibrating table 20 in the X-axis direction, and an exciter 30B for vibrating the vibrating table 20 in the Z-axis direction. The exciter 30A and the vibrating table 20 are connected with a leaf spring joint 40A which is elastically deformable mainly in the Z-axis direction. The exciter 30B and the vibrating table 20 are connected with a leaf spring joint 40B which is elastically deformable mainly in the X-axis direction. The leaf spring joints 40A, 40B, which are excellent in torsional rigidity and directionality in elastic deformation against a lateral load, accurately transmit vibration of the exciters 30A, 30B in the direction of the action of the resultant force of exciting forces and are durable.