Composite thermal insulation system is a major change of traditional external thermal insulation system technology, which fundamentally improves the problems of thermal insulation energy saving and structural fire prevention, and realizes the same life of thermal insulation system and buildings. The traditional insulation paste system often falls off. The structural integration technology of cast-in-place concrete composite insulation system solves the common problems of traditional insulation and forms a huge market demand. More and more attention has been paid by developers and governments at all levels. It has become a new type of building insulation energy-saving technology, and has created huge social and economic benefits and won the support of governments at all levels, It has been applied in more than 20 provinces of China.