Bronchial artery infusion (BM) with chemical agents was performed in 41 patients with lung carcinoma up to 61 times, included 33 cases (51 times) primary lmag cardmmm (PLC) and 8 cases (10 times) lung metastatic carcinoma (I2VIC). Short- time effects were valuable in 31 cases with PLC and 7 cases with LMC. Complete remission (CR) plus partial rimission (PR) ocurred in 14 cases (45.16%) among 31 patients with PLC and 1 case (14.28%) anmng 14 patients with LMC (P<0.01). CR plus PR was 10 cases (52.63%) among 19 patients with cenlral type cancer (CTC) and 4 cases (33.33%) among 12 patients with pwprephal type cancer (PTC) orPLC (P<0.05). CR plus PR in 15 squamous carcinomas (SC), 6 adenocarcinonms (AC) 2 small cdl undifferentiated carcinomas (SCLC) and 8 histologically tmclassfied carcinomas (HUC) were 8 (53.33%), 1 (50%), and 3 (37.5%), respectively. The rate of CR plus PR in squamous carcinoma was higher than that in adenocarcinoma and histologically unclassified carcinoma (P<0.05). There was no remarkable diffexence in CR plus PR among stage II--III and IV patients with PLC, CAP and FMP protocol treatment. This study also investigated and analysed the side effects of 41 patients by BAI treatment.