Abstract: In order to improve the fracturing efficiency of the coalbed methane well,an ANSYS finite element software was applied to simulate the different path and m ethod to reduce the seam fracturing pressure during the coalbed methane well fracturing process. A stress calculation model of the perforation completion was researched and established. Thus a simulated coal 1 rock fracturing pressure was calculated and the perforation borehole length, diameter,coal 1 rock Poisson's Ratio and Young's Mod ulus,strata depth and others affected to the coal 1 rock fracturing pressure were analyzed. The simulation results showed that when the perforation borehole length and dia meter were individually controlled about 1 m and 15 mm,the coal 1 rock fracturing pressure would be favorably reduced. A low coal 1 rock Poisson's ratio would be favorable to reduce the fracturing pressure in a certain degree. The coal 1 rock Young's Modulus would not have high influence to fracturing pressure. While more deep depth of sea m,the fracturing pressure would have a less influence by horizontal main stress difference.