Abstract: Based upon the study of the representative publications in recent years，the advances on the basic geology of coalbed gas in China were reviewed in four aspects，i.e.，coalbed gas generation-evolution-migration，coal reservoir and its predication，pool-forming dynamic condition and its numerical modeling ，and coalbed gas reservoir mod el an d regional accumulation．Some topics for the study of coalbed gas geology in China in the near future，then are propose ，which include the coalbed gas supercritical absorption effect，energy equilibrium system and accumulation-emission mechanism ，evaluation theory and mod el for the effective resources，structural-drainage control to coal reservoir permeability，and superimposed field effect for the effective anequilibrium of coalbed gas-bearing system ．