The orthodontic treatment of deep coverage is divided into early orthodontic treatment, general orthodontic treatment and combined orthodontic and orthognathic treatment according to the oral condition and age. 1. Early orthodontic treatment. Early orthodontic treatment is generally carried out in the period of permanent teeth to the early replacement teeth, using orthodontic force orthodontic appliances and functional orthodontic appliances to improve the growth of jaw deformity, removing bad oral habits to treat pharyngeal and throat diseases, and adopting the arch expander or lip stop for correction. 2. General orthodontic treatment. Generally, starting from the permanent teeth stage, the molar teeth are pushed towards the distal center by using extra-oral arch or intra-oral orthodontic appliance, and according to the situation, extraction and reduction of teeth are used for orthodontic treatment. 3. Combined orthognathic and orthodontic treatment. For adults with serious deformity of maxillary protrusion or mandibular retrusion, it can be treated by orthognathic surgery, utilizing osteotomy to adjust the relationship between the upper and lower jaws to improve oral function and facial aesthetics. For deep coverage, it is recommended to go to the hospital for oral and X-ray examination before determining the orthodontic plan.