分析５２例老年肺结核继发肺部感染的临床资料，有如下特点：较青少年肺结核继发肺部感染的发病率高，以慢性纤维空洞型最多。临床表现不典型，肺底部感染多见。革兰阴性杆菌检出率高，且大多对青霉素、链霉素耐药，对庆大霉素、卡那霉素、丁胺卡那霉素敏感。积极治疗原发病和控制感染是降低病死率的重要措施。 Analysis of 52 cases of elderly pulmonary tuberculosis secondary pulmonary infection clinical data, has the following characteristics: more than the incidence of pulmonary tuberculosis in young secondary to high incidence of infection, with the most chronic fibrous hollow type. Atypical clinical manifestations, pulmonary infection more common. Gram-negative bacillus detection rate is high, and most of the penicillin, streptomycin resistance, gentamicin, kanamycin, amikacin sensitive. Active treatment of primary disease and infection control is an important measure to reduce mortality.