We have consturcted 5 coalbed methane wells（there are 4 parameter wells) in Sichuan. The parameters reflected the procession of reservoir condition for coalbed methane development and small network of production test in Sichuan. But there are still serious existing problems such as slow drilling process, difficult layer selection for setting test and hole deviation control, coal seam correlation and coal recovery not ideal as expected and coal reservoir pollution. Three spuds well structure, deviation control with drilling straight, research on large diameter wireline coring and reservoir protection were suggested by the condition analysis to promote the drilling technical guarantee for coalbed methane exploration and development in Sichuan.