Objective To study the clinical diagnosis of pulmonary sarcoidosis,in order to improve the diagnostic accuracy.Methods The clinical data of 20 patients with pulmonaty sarcoidosis was retrospectively analyzed .Results There were 7 males and 13 females in this group with 20 patients age 14~63 years old mean 41 6 years,main symptom was cough(n=16),wet cough(n=8),hard breathing(n=6),fever(n=6),erythema(n=4),visual change(n=3),fatigue(n=2),headache(n=1),X-ray and CT examination results were as followes:bilateral hilar hilifuge larger than normal 19 cases,single hilifuge larger than normal 1 cases,mediastinal lymphadenectasis 12 cases,interstial pulmonary fibrosis 6 cases,bilateral little quantity pleural effusion 3 cases.Bronchofiberoscopy diagnosis in 14 cases,live tissue examination of skin,mucosa and lymph node in 8 cases,Kveim test positive 3 cases,SACE 69 8?12 6?/L.Conclusions Clincal symptom of pulmonary sarcoidosis was not typical,high morbidity was occured among females.In combination of clinical symptom,X-ray examination and bronchofiberoscopy pathologic examination was required to improve diagnosis rate.The therapy of adrenocortical hormone could acquire good efficacy.