Damage in a structure is also characterized by changes in eigen parameters, i.e., natural frequency, damping factor and the mode shapes associated with each natural frequency. Experimental modal analysis of composite laminates is performed using Laser Doppler Scanning Vibrometer to record vibration signatures of healthy and delaminated specimen to predict delamination. The experimental modal analysis is conducted on composite plates with different ply orientations in fixed-free boundary condition using dynamic excitation at the center of the plate by an electro-dynamic shaker. All the delaminated specimen show distinct decrease in the natural frequencies in comparison to the healthy ones except in case of cross ply laminate where only a marginal change is observed. Damping losses for different modes are also determined. A standard FEM Package ‘ABAQUS' is used for modal analysis of healthy composite plates to verify the results of experimental modal analysis. A good agreement in natural frequencies for different modes is seen for various ply orientations. Applicability of experimental modal analysis for active health monitoring is discussed in this context.