在信息技术发展带动作用下,各行各业取得了一定的进步,同样对于石油企业而言,信息技术应用已经成为一种必然。值得注意的是,石油企业与其他企业相比,前者的局域网所担负的风险更大,信息数据量大,因此如何做好局域网安全工作一直是石油企业研究的重点。文章从石油企业局域网发展出发,对局域网安全机制建设进行了详细的论述,旨在为石油企业局域网建设参考使用。 Driven by the development of information technology, all walks of life have made some progress, the same for the oil companies, the application of information technology has become a necessity. It is noteworthy that, compared with other enterprises, the petroleum enterprises are more risky and have a large amount of information and data on LANs. Therefore, how to do a good job of LAN security has always been the focus of oil companies’ research. Starting from the development of local area network of petroleum enterprises, the article discusses the construction of local area network security mechanism in detail, aiming to reference the construction of local area network of petroleum enterprises.