Objective To provide references for disease diagnosis,treatment and aeromedical assessment by analyzing the characteristics of neurosurgical diseases in hospitalized military flying personnel.Methods The case data and aeromedical assessment conclusions of 56 military flying personnel admitted to the Neurosurgery Department of Air Force Medical Center from 2010 to 2020 were collected.The diagnosis and treatment,as well as the flight post and aircraft type were retrospectively analyzed against the assessment conclusions.Results The constituent ratio descending order of the neurosurgical diseases in the flying personnel was cerebrovascular disease(35.71%),central nervous system tumors(17.86%),sellar lesions(17.86%),arachnoid cysts(16.07%),traumatic brain injury(5.36%),scalp tumors(3.57%)and syringomyelia(3.57%)respectively.Among the 20 patients with cerebrovascular diseases,5 received surgical treatment and other 15 received conservative treatment.In which 10 cases were qualified or restricted qualified,9 cases were temporarily grounded,and 1 case was disqualified for flight.Among the 10 cases with central nervous system tumor,5 received surgical treatment,1 received radiotherapy and 4 received conservative treatment.In which 3 cases were qualified or restricted qualified,3 cases were temporarily grounded and 4 cases were disqualified for flight.Among the 10 cases with saddle area lesions,2 received surgical treatment,3 received medical treatment and other 5 were observed by followed up.In which 8 cases were qualified or restricted qualified,1 was temporarily grounded and 1 was disqualified for flight.Among the 9 cases with arachnoid cysts,1 received surgical treatment and 8 received conservative treatment.In which 5 cases were qualified or restricted qualified,1 was temporarily grounded and 3 were disqualified for flight.Among the other 7 cases,5 received medical treatment or observed by follow-up,and 2 received surgical treatment.In which 6 cases were qualified for flight and 1 was temporarily grounded.Conclusions Neurosurgical diseases should be paid more for flight safety due to quite a few restricted qualified,temperedly grounding or disqualified cases existed in the military flying personnel with such diseases.