RESULTS: There were 25 male patients (60.98%) and 16 female patients (39.02%). Median age of the patients was 55.23±18.22 (range, 3.5 to 82 y). 17 of 41 immunocompetent hosts with pulmonary Nocardiosis suffering from structural lung disease (41.46%) including bronchiectasis, Chronic obstructive pulmonary disease (COPD) and Lung cysts. In this review, the common manifestations of immunocompetent hosts with pulmonary Nocardiosis included fever, cough, expectoration, dyspnea, hemoptysis, chest pain and weight loss. 10 cases accompanied pleural effusion, 7 cases with lung abscess. Dissemination occurred in 10 cases, dissemination parts included the brain, skin, abdominal wall. Common chest image were nodules (16 cases), consolidation (12cases), cavity, mass (12 cases) and patchy (9 cases). Nocardia asteroids predominant in 23 identified Nocardia. Most of Nocardia are susceptible to Sulfonamides in drug sensitivity test. Major patients had good prognosis.