目的　了解广州市 1 984年以来肺结核患病的变动趋势。　方法　按全国流行病调查要求设计的广州市三次流行病学调查的肺结核横断面的患病资料进行比较观察。　结果　 1 6年间全市活动性肺结核的患病率从 339 0 8/ 1 0万下降到 1 4 5 66/ 1 0万 ,年平均递降 5 1 6 %。肺结核患病的平均年龄由 49 94岁上升到 56 0 4岁。　结论　广州市的疫情明显下降 ,但患病有向老年化转移的趋势 Objective To understand the changing trend of tuberculosis in Guangzhou since 1984. Methods According to the national epidemiological survey designed in Guangzhou three epidemiological survey of tuberculosis cross-sectional prevalence data were compared. Results The prevalence rate of active tuberculosis in the city dropped from 339 0 8/1 0 to 1 45 56 100 in 16 years with an average annual drop of 516%. The average age of tuberculosis increased from 49 to 56 years old. Conclusion The epidemic situation of Guangzhou is obviously decreased, but the prevalence of the disease tends to be transferred to the elderly