Bimaxillary protrusion is a common type of malocclusion in our clinic, and this type often has the following manifestations: 1, aesthetics In the dentition, it is often manifested as the upper and lower anterior teeth protruding forward and accompanied by crowding of the teeth, etc., and the jawbone can show protrusion or normal, and the soft tissue side appearance is manifested as protrusion. 2, Function Due to anterior protrusion, patients often open their lips and show their teeth, poor periodontal health, abnormal lip inclination of anterior teeth can lead to abnormal force during occlusion and premature dislodgement. 3, heart Mouth protrusion, gum exposure when opening and lip tilt of the front teeth may lead to lack of confidence in the patient’s appearance. For the orthodontic treatment of bimaxillary protrusion, it is necessary to comprehensively analyze the patient’s dentition, craniofacial skeleton, temporomandibular joints, facial soft tissues, and formulate a reasonable orthodontic plan, and there may be several treatment options for the patient to choose from. Orthodontic treatment can be implemented with conventional fixed orthodontic appliances for a period of 1-2 years.