With the rise of implants, the application of micro-screw implants similar to implants has emerged in orthodontic clinical treatment. Since micro-implants are strongly supported and act directly on the jawbone, they do not cause the problem of loss of support. The following is a description of the application of implants in orthodontic clinics: Generally speaking, implant nail support is needed when the number of supporting teeth of a patient is insufficient or when the patient cannot withstand orthodontic forces. The support of anterior teeth inward lingual orthodontic treatment can improve the cusp-molar class II malocclusion, including improving the deep overjet, closing the extraction gap, correcting the jaw plane, aligning the mesial suture, pushing the cusp teeth outward, pushing the molar teeth backward, expanding the arch of the maxilla, lining up the maxillary third molar, and so on. The application of microscrews as orthodontic temporary supports is becoming more and more diversified, and some new uses are emerging. 1.Compression of posterior teeth to treat open jaw, alternative orthognathic surgery For adult bony open patients, the traditional orthodontic treatment can not control the vertical height of the posterior teeth, and can only choose orthognathic surgery. The use of implant nails can effectively depress the posterior teeth, and even mildly rotate the biting jaw surface. At the same time, it can provide enough gingival distance for implant restoration. 2.Rapid arch expansion Narrow maxillary arch, back teeth anti-collision is a common orthodontic malocclusion deformity, generally need to expand the arch of the upper jaw. The basic principle is the separation of the palatal crevice, as well as the displacement of the teeth, the tilt and deformation of the alveolar bone. 3.Pushing the molars backward and grinding the teeth upright Mild crowding and the use of non-extraction techniques to correct Ans II malocclusion often need to push the molars backward and use the maximum support, the use of palatal implants as orthodontic support is a new field. Upright proximo-centrally inclined mandibular second molars thus provide the basis for restoration of the first molars. In conclusion, implant support, as a special kind of support, extends the use of implants and becomes a new idea and tool for the development of orthodontics, especially in adult orthodontics, showing its unique advantages. However, the research and application of this type of implant is still relatively short, and there are some reports that its stability is not yet satisfactory and its resistance to torsion is poor. Therefore, further research is needed on the histologic study of the design of microscrew implants and the effect of orthodontic force on the change of the implant interface. In particular, there are still many problems to be solved in terms of improving the clinical success rate, popularizing the application, accumulating experience and gaining patients’ understanding and acceptance, which need to be further researched and observed. However, from the current domestic and international attention to it and the use of the situation, the application of micro-screw implants will become the mainstream trend of orthodontic implant support.