Abstract: Objective To study clinicopathological characteristics and tendency of incidence of lung tumors from 1980 to 2007 in Tianjin and to provide information for pathologists and clinicians. Methods The data of lung tumors are collected from General Hospital and the Second Hospital of Tianjin Medical University.The data are analyzed by SPSS11.5. Results Both of the ratios (the ratios of lung cancer to the total and lung cancer to the malignant tumors) have been increasing druing 28 years(P＜0.05）.Among 3 075 cases females are accounting for 29.5%,and the cases of females have been increasing further than males.The ratio to the total among the corresponding time period has the same trend (P=0.040）.The ratio of adencarcinoma and large cell carcinoma is increasing while the ratio of squmous cell carcinoma and small cell carcinoma is decreasing .The cases of youngers have been also increasing and its proportions of histological types of lung cancers has a significant different compared with the middle-aged and olders（P=0.000）.Adencarcinoma is the main type of youngers while squamous cell carcinoma is the main type in both the middle-aged and olderly group. Conclusion The detection rate of lung carcinoma especilly carcinoma in females is increasing,and the subtypes of lung carcinoma also changed.