After decades of development and technology advancement, coalbed methane has become an important source for U S. energy consumption. Especial in recent year, U S. coalbed methane production continues its healthy growth rate of about 10% per year. The paper takes emphasis on the technology developments and the engineering approaches of coalbed methane in the U S. After decades of development and technology advancement, coalbed methane has become an important source for U S. energy consumption. Especial in recent year, U S. coalbed methane production continues its healthy growth rate of about 10% per year. the technology developments and the engineering approaches of coalbed methane in the U S.