In order to enhance the heat resistant and mechanical properties of honeycomb sandwich at high temperature,the test of mechanical properties and heat insulation properties with static quartz lamp are carried out. The result shows that the retaining rate of flexural strength,moduli and interlaminate of panel are 58%,85% and 57%,respectively. After the sample heated by static quartz lamp,with 300 kW/ m2 and 168 kW/ m2 heat flux for 180 s,the back temperature of honeycomb structural composites are 320益and 296益,respectively.