A fireproof coating is a material that reduces the flammability of the surface of the object being painted and thus prevents the rapid spread of a fire. Before construction, it is necessary to protect and clean up the surrounding environment to ensure that the surrounding environment and structure will not be polluted during the construction process. The construction process includes steps such as pre-construction preparation, approach, surface treatment of components and construction. During the approach phase, scaffolding that meets safety requirements is required for the area where scaffolding is required during painting. In the component surface treatment stage, it is necessary to check the status of the steel component surface primer, if there is no anti-rust layer or the anti-rust layer is damaged, it is necessary to put forward the corresponding rectification measures to the supervisor or the owner to ensure that the anti-rust coating on the surface of the steel structure is complete and non-corrosive. In the construction phase, the thickness of the first construction is generally 0.10-0.15mm