Objective To analyze the lymph node metastasis rules of non-small cell lung cancer (NSCLC). Methods 1 1 2 cases of lung cancer patients were given surgical resection and lymph node dissection of extensive hi-lar parallel,leaves room and mediastinuml.Pathological data were statistically analyzed.Results A total of 898 groups of lymph nodes were removed.The metastatic rates of N1 and N2 (including N1 +N2)nodes were 24.1%and 30.4%.There were significant differences in lymph node metastasis existed among primary lung cancer (T) stage T1 ,T2 and T3 (P<0.01 ).Solitary metastatic nodes accounted for 35.3%of N2 metastatic nodes.Conclusion Lymph node metastasis is related with T staging of NSCLC,with more jumping mediastinal lymph node metastasis. There is no significant relationship between tumor location and type of lymph node metastasis.Surgical treatment should pay attention to a wide range of cleaning lungs and ipsilateral mediastinal lymph nodes.%目的：分析112例非小细胞肺癌淋巴结的转移规律。方法对112例肺癌患者施行手术切除并行广泛肺门、叶间及纵隔淋巴结清扫术。术后病理资料进行统计分析。结果在共清除898组淋巴结中，单纯N1淋巴结转移率为24.1％，N2（包括N1＋N2）淋巴结转移率30.4％。原发肺癌（T）分期T1、T2、T3间淋巴结转移率差异有统计学意义（P＜0.01）。跳跃式转移占N2转移的35.3％。结论非小细胞肺癌的淋巴结转移与T分期有关，具有较多的跳跃性纵隔淋巴结转移发生，肿瘤部位及肺癌的病理学类型与淋巴结的转移无明显关系。外科治疗中应注意广泛清扫肺内、同侧纵隔淋巴结才有可能达到根治目的。
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