Objective To explore patients' experience in the orthodontic orthognathic combined treatment outpatient service.Methods Purposive sampling method was used to select 6 patients who were admitted to the orthodontic orthognathic combine treatment outpatient service in Shanghai Ninth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine in February 2017. Research data were collected in the form of face-to-face and semi-structured in-depth interview, and analyzed by Colaizzi content analysis.Results In the research, 3 topics were extracted: patients experience, communication experience, and waiting experience.Conclusions The orthodontic orthognathic combined outpatient service provides convenience for patients and plays an significant role in the diagnosis and treatment of disease. However, there is still room for improvement in the service of combination outpaitent.