The thermal effects on the kinetics of panel structure were studied. Combining the unsteady aerodynamic model based on sunpersoin piston theory with structural dynamics equation, the flutter equation of thermal panel was obtained. The flutter analysis on thermal panel was carried out by P-K method, and the trend of flow angle on the flutter velocity was discussed. The numerical results show that thermal effect has a great impact on the inherent characteristics of panel,thereby affecting the panel’s flutter characteristic.