【Summary 】 the purpose inquire into applying spiral water knife to carry out precise liver resection's application value in the Dan way Method to my hospital September, 2009 to December, 2010 carry out of 58 applied the spiral water knife carry out precise liver resection to be in the Dan way patient's surgical operation data carry on looking back sex There are 55 doors that don't need to stop liver in result 58 surgical operations, breaking the liver is for time a 15~60 mins, the cross section handles time as 15~35 mins and bleed quantity between 300~1300 mls;(the 800 mls is 4)The visual field in Shu is clear, the piping system inside the liver exposes well and all have never taken place the piping system mistake Sun, the B super monitor didn't discover the performance with important and afferent harm after the Shu;Round surgical operation to expect to don't die a case;After the Shu the liver function resumes time on the average about is a The conclusion is applied the spiral water knife carry out the precise liver resection treatment Dan way the disease is a safety, viable, can reduce blood in the liver door to stop, reduce to bleed quantity in the Shu, after shortenning Shu liver function instauration 【Keyword 】spiral water knife precise liver resection Dan way disease