Wall coating refers to the decoration and protection of building walls, making the building walls beautiful and tidy, and also playing a role in protecting the building walls and extending their service life. Wall coatings are classified into two main parts: interior wall coatings and exterior wall coatings. Interior wall coatings focus on decoration and environmental protection; exterior wall coatings focus on protection and durability. In addition to its own decoration and protective effects, wall coatings are also developing towards a trend of rich and colorful, fashion, healthy and environmental protection. People hope that the decoration effect is brilliant and beautiful, noble and elegant, romantic and warm; they also hope that the materials are healthy and environmental, individualistic and full of three-dimensional sense. Therefore, powder coating will become the development trend of future wall health coatings.