Activated carbon was a fine adsorbent.There were different forms of raw material source.Several regenerative methods were introduced mainly,which contained hot regeneration,solvent regeneration,biology regeneration,catalytic wet oxidation of regeneration,electrochemical regeneration and etc.The principle and process on regenerative methods were expounded.There were comparisons on regeneration efficiency,carbon loss rate,regenerative repeatability,and energy consumption of sorts of regeneration methods.It was evaluated on various regenerative methods.