A cone calorimeter was used to determine combustion performance of laminated composite panels made from poplar veneers and aluminum foils which were placed at different layers inside the panels. The influences of the aluminum foil’s positions on combustion characteristics of the panels were evaluated. The results showed that with symmetrical position of the aluminum foils from center to surfaces of the panels, time to ignition（TTI） of the panels was extended with lower heat release rate（HRR） and total heat released（THR） as well as reduced mass lost rate（MLR） and harmful gases（CO and CO2） released. However, it was observed that total smoke release（TSR） of the panels was increased and significantly enhanced in the later period. The laminated composite panel with aluminum foils placed close to panel surface showed better fire resistance and flame retardation.