Abstract: Along with the development of computer network,long-distance transmission of drilling data has been achieved.In order to availably supervise and control field data,and have a on-line communion on drilling information,field computers were joined with enterprise local area network,drilling information managing system was developed.The system can use telecom network(GPRS/CDMA)distributing in plain area to build network channels between drilling field and base,it has such functions as field data managing,radio transmission,network auditing issue and statistical research,on-line communion,etc.,it is a suit of assistant production managing system with a lower charge and perfect function.The application of this system improved the scientific managing level,and ensure that petroleum exploration and development is safety,high quality,excellent effect.Drilling information managing system is a succeedable example of telecom network used in oilfield.