Flame-retardant cotton is a new type of fire-proof material, which has certain fire-proof effect and is not easy to burn after being processed by special substances and processes, and it will automatically extinguish after leaving the fire source and will not be re-ignited. It has the characteristics of permanent flame retardant, moisture absorption, breathability, soft touch, long elasticity and good heat insulation. When it burns, it has only a small amount of smoke, insoluble droplets, no toxic gas release, self-extinguishing effect, and retains its original shape after carbonization.