Abstract: With the development of information technology,the internal network of the petroleum enterprise rises to prop up the function increasingly and importantly in produce activity,putting forward the higher request to the loading ability and safety of the network.How to set up an eligible security system,how to guarantee the security core data from enterprise,those are issues need to be solved immediately according to the enterprise pressing requirement.This article takes the internal network security of the Xinjiang oilfield company No.2 production plant as an example,analyzing existing security risk of internal network,and put forward three control strategy:excellent and perfect network structure,deploying the security protection system,building up the safety guarantee system,to provide the reference for the oil-field enterprise network safety.

Key words: Oilfield enterprise,Internal network,Security risk,Control strategy