Abstract: Production data of 25 coalbed methanne wells of Jincheng，Lu’an，Jiaozuo and Tiefa coalfields are used in a comprehensive study on permeability，gas saturation，condition of reservoir pressure drop-off，underground water system an d energy system of coalbed methane reservoir．Four types of typical production curve in combed methane wells are recognized．The author believe that necessary reservoir conductions of high production coalbed methane well are high permeability (>0.5 mD)，high specific value of critical desorption pressure and reservoir pressure(> 0.6)and high gas saturation(>8O％)．Variable combination between coal seam and stratum may control directly coalbed methane production．