Abstract: We have studied 214 cases of lung carcinoma resected by the chest surgical department during 23 years （1959-1982）.According to the present classification of lung carcinoma both in our country or abroad,we divided these patients as follows: Grossly there are six types:（1）intraluminal（2）Bronchialwall infilitrative（3）nodular （4）globular（5）massive（6）diffuse.Microscopically there are also six types:（1）squamous （2）adenous（3）bronchiolo-alveolar（4）small cell（5）large cell and（6）others. We found that the most frequent site of lung carcinoma is left upper lobule. The second is right upper lobule.The incidence of bronchiolo-alviolar carcinoma tends to raise recently. Under microscope,sonetimes,it’s very difficult to differentiate the low differentiate squamous carcinoma from the low differentiate adenocarcinoma and it’s ofter nessesary to depend to the electron microscope.Recently the phenotype classification of lung carcinoma is recomended.This proposal has many merits for pathologists.We are using this classification too.