Abstract: According to the complicated and diverit cifferent format.separated storage of the caled methane development and utiliation data in China and themassive data hard tofally sharing and other featres based on the ful tudy to met the requirements of the inormation sharng ,the calbed methane metadata management system was designed based on the inemnet .The paper frtly discussed the mnerladata standards of the coabed methane development and tliiaion,metadata automatic extracion and intemnet reaping and other technogy under the intemnet emvironment and based on the XML. In the end, based on mine gas geologic map.a repor document of coalbed methane data procssing platfom and calsed methane uiation database as the cases.the paper provided therelevant meladata utomat.generation case under the internet environment.The meladata management system ran through thefilife period ofthec led methane geology.development an .utiization.The automatic upgrading of the metadata database information could ealize the coalbed methane information sharin timely and efe ctively and couldprovide the support services of the dynamic decision making for the coalbed methane development and utilization.