Abstract: In the present study,we report the results of endoscopic microwave papillotomy (EMPT) using Chinamade Microwave Therapewtic Instrument.EMPT was performed in 50 cases:including choledocholithiasis papillary stenosis etc.The technique was successful in all cases.The success rate of removing stones was 96%.Arelief rate of the stenosis state was 90%.Tere were no serious complications such as hemorrhage and perforation.There was no death case in our group during treatment.Also,EMPT had several advantages compared with standard EPT in terms of its cost and simplicity of the technique.

Key words: microwave, endoscopic papillotomy, common bile duct stones, popillary stenosis