Determining the best excitation point is one of the key problems in correlation analysis. To choose the best excitation point,finite element model and a new criterion based on Mode Participation which was named coefficient of variance of mode participation criterion( CVMPC) were studied and presented. PCB case studies were presented to validate the new criterion. In the case study,the best excitation point and second best point were selected by using both CVMPC and Mode Participation method,comparison was m...