The thermoplastic organic foam of the thermal insulation material has the characteristics of light weight, high efficiency and the like, and shrinks and melts in the case of fire. The thermosetting thermal insulation material is FLOLIC as the main raw material, blended with various inorganic fillers, and is formed by foaming and solidification. Molecular synthetic materials. It has the advantages of non-combustion, low thermal conductivity, no fluorine, wide temperature adaptability, good chemical resistance, strong water resistance, aging resistance, convenient construction and beautiful appearance, especially for excellent fire resistance and low temperature resistance. It shows its broad application prospects. It is a new generation of organic insulation materials, providing a new concept of insulation, energy saving and environmental protection. It is one of the most advanced and perfect thermal insulation materials systems. The thermosetting organic foam burns carbonization and self-resistance of carbon deposits. It can be seen that the thermosetting organic foam has better fireproof performance than the thermoplastic organic foam. Experiments have shown that the B2 grade thermosetting organic foam is superior to the B1 grade thermoplastic organic foam in fire resistance. Scientific research proves that the fire-resistance of B1 grade thermosetting organic foam is even better than that of ordinary grade A inorganic fiber insulation products such as glass wool, and the carbon-deposited layer formed by the thermosetting organic foam can prevent the flame from spreading. When using organic insulation materials, not only must the combustion grade be limited, but also the combustion characteristics should be distinguished.