Gypsum is mainly used in cement retardant, construction products, model making and other applications, as well as the use of traditional Chinese medicine, medical food additives, sulfuric acid production, paint filler, etc., and more importantly, the role of Western medicine surgical fixation. We are mainly talking about the effect of medical treatment, the application of gypsum has the effect of clearing heat and fire, quenching thirst and generating fluid, coagulation and hemostasis, which means it has the effect of clearing heat and fire, suitable for patients with toothache, headache and stomach heat, so it is said that the application of gypsum in the field of medicine, especially Chinese medicine, is still very wide. Of course, the wide application in surgery is also very high, because the use of plaster for external fixation of the fracture site can play a very good effect, after the fracture injury, the use of plaster fixation can play a role in protecting the fracture site from further development of the fracture degree due to external damage, as well as the possibility of causing many complications, such as secondary infection, misalignment and other abnormalities. Moreover, cast fixation after fracture can play a role in promoting the degree of fracture repair, and if the reset is better, it should not affect the function of the limb. Therefore, the application of plaster in the medical field is still very extensive, mainly in the field of Chinese medicine and surgery, which can play a vital role. However, it should be used under the operation of a professional physician.