Abstract: 【Objective】The influence of intumescent flame retardants and amino resin(IFR-MUF)on CO and CO₂ production of wood materials was investigated.【Method】CO and CO₂ production of Eucalyptus saligna, E. saligna plywood, and E. saligna flame-retarding plywood was studied using a cone calorimeter(CONE)at 30 and 50 kW/m². 【Result】The rate of CO₂ production was highest during ignition and carbon combustion stages. The rate of CO production was highest at the smoldering stage, while the most significant effect of the radiance level on CO production rate was observed during carbonization. The utilized amino resin promoted the integrity of char layers, negatively affecting smoke release during the carbonization stage and enhancing CO₂ production during the carbon combustion stage. The thermal conductivity of the carbon layer was higher than that of the airmade 2^nd peak of the CO and CO₂ production rate curves earlier. The effect of IFR-MUF on CO production was closely related to radiance levels, with CO emission yields being markedly increased at lower radiance levels. 【Conclusion】 The trend observed for the CO₂ production rate agreed with that of the mass loss rate, being slightly affected by radiance levels. IFR-MUF increased CO emission yields and decreased those of CO₂.