Objective: To summarize the characteristics, diagnosis and treatment of respiratory foreign body. Methods: 3 595 cases of respiratory foreign body from the Affiliated Hospital of Xuzhou Medical University from 2003 to 2016 were reviewed and analyzed systematically. Different annual incidence, patient age, foreign body type, foreign body retention time, foreign body location, operation type, different seasons and urban and rural composition ratio were analyzed and compared. Results: The incidence of respiratory foreign body increased from 2003 to 2011, decreased from 2012 to 2016, and the highest incidence was 1 012 cases (28.15%) from 2011 to 2012. The 1-5 years old and 6-8 years old were the high incidence age of foreign bodies with 3 787 cases (88.65%) and 156 cases (4.34%), respectively. The phytopathic and animal foreign bodies werethe high foreign bodies types with 2 560 cases (71.21%) and 518 cases (14.41%), respectively. Most of the foreign bodies in the airway were retained for<1 week and 1 week to 1 month with 2 065 cases (57.44%) and 1 269 cases (35.30%), respectively. The foreign body in respiratory tract was mostly located in the trachea and the right main bronchus with 2 060 cases (57.30%) and 1 108 cases (30.82%), respectively. There were more people who underwent bronchoscopy and direct laryngoscopy with 2 583 cases (71.85%) and 1 009 cases (28.07%), respectively. January and February were frequently happened period with 856 cases (23.81%) and 715 cases (19.89%), respectively. There were 217 cases (6.04%) in urban areas, which was higher than that in rural areas with 3 378 cases (93.96%). Conclusion: 1-5 years old ishigh incidence age of respiratory tract foreign bodies, and the majority foreign body is phytopathicbodies.We should strength the health education of trachea and bronchus foreign body. The guardian should know the disease and its severity, and treat it in time, thus can reduce the complication of trachea and bronchus foreign body and raise the cure rate.
 Global Burden of Disease Study 2013 Collaborators.Global,regional,and national incidence,prevalence,and years lived with disability for 301 acute and chronic diseases and injuries in 188 countries,1990-2013:a systematic analysis for the Global Burden of Disease Study 2013[J].Lancet,2015,386(9995):743-800.
 YANG X J,ZHANG J,CHU P,et al.Pneumomediastinum secondary to foreign body aspiration:clinical features and treatment explorement in 39 pediatric patients[J].Chin Med J (Engl),2016,129(22):2691-2696.
 SOONG W J,TSAO P C,LEE Y S,et al.Retrieval of tracheobronchial foreign bodies by short flexible endoscopy in children[J].Int J Pediatr Otorhinolaryngol,2017,95(4):109-113.
 JANAHI I A,KHAN S,CHANDRA P,et al.A new clinical algorithm scoring for management of suspected foreign body aspiration in children[J].BMC Pulm Med,2017,17(1):61.
 PITIOT V,GRALL M,PLOIN D,et al.The use of CT-scan in foreign body aspiration in children:A 6 years' experience[J].Int J Pediatr Otorhinolaryngol,2017,102(11):169-173.
 CHEN X,ZHANG C.Foreign body aspiration in children:Focus on the impact of delayed treatment[J].Int J Pediatr Otorhinolaryngol,2017,96(4):111-115.
 DENG L,WANG B,WANG Y,et al.Treatment of bronchial foreign body aspiration with extracorporeal life support in a child:A case report and literature review[J].Int J Pediatr Otorhinolaryngol,2017,94(3):82-86.
 BAKHSHAEE M,HEBRANI P,SHAMS M,et al.Psychological status in children with ear and nose foreign body insertion[J].Int J Pediatr Otorhinolaryngol,2017,92(1):103-107.
 CHEN Q,CHU H,TAO Y,et al.Lessons learned from 35 cases of laryngeal foreign bodies undergoing misdiagnosis in pediatric population[J].Ann Otol Rhinol Laryngol,2017,126(2):146-151.
 BERDAN E A,SATO T T.Pediatric airway and esophageal foreign bodies[J].Surg Clin North Am,2017,97(1):85-91.
 PARIDA P K,SHANMUGASUNDARAM N,GOPALAKRISHNAN S.Clinico-radiological parameters predicting early diagnosis of foreign body aspiration in children[J].Kulak Burun Bogaz Ihtis Derg,2016,26(5):268-275.