The prediction of vibration intensity of a finite plate by using element analysis (FEA) is investigated. Th e formula of the structural intensity in a thin plate i s firstly discussed. Then the structural intensity vecto rs and rms velocity distributions of a simply-support ed thin finite plate have been presented. Harmonic r esponse analysis for three excitation conditions: point force excitation with an attached damper but witho ut structural damping, point force excitation with str uctural damping and force excitation over a finite ar ea with structural damping. Although the rms velocit y distributions give some indication of the vibration mode at a particular frequency, the structural intensit y vectors reveal the power flow pattern.