Electromagnetic finite element analysis of sound-wave non-contact detection system using eddy current is proposed in this paper. A special designed winding which is fed by an impulse current generates an impulse magnetic field to induce an eddy current on the object under test. Because of the combination of magnetic field of winding and the eddy current of the testing object, the electromagnetic force is generated to make the surface of object vibrate to generate a wave for detection. Because different eigenvectors of normal and defect objects, the sound wave spectra are also different for testing objects due to the natural frequency which can be used to distinguish from the normal and defect objects by using artificial intelligent technology. Finally, the experimental results are used verified the proposed method.