This paper gives a summary of surgical treatment for 164 cases of intrahepatic bilary duct calculi and bile duc- tal atrictures and the surgical methods should be deter- mined especially by the locations of stones and bile duc- tal strictures.In this group there occur 116 cases of duc- tal strictures (70.7%),post-operative residual stones 37% and 127 cases with indwclling catheters in the bile duct(77.4%).Through an cxamination of cholcdo- chofiberscope,the removal of residual stones is 92.6%. Thus,indwelling catheters in the bile duct during an op- eration are considered to be extremely necessary.