我国钢铁工业遭遇产能过剩、安全隐患、环境污染等问题，同时面临数据采集、远程操控、实时数据交互等行业共 性问题。5G SA网络采用网络功能虚拟化及软件定义网络的服务架构，具有增强型移动宽带、超高可靠性低时延业务和海量 机器类通信三大应用场景，可以很好地应用于社会垂直行业。基于5G SA构建核心专网方案，通过打造数字化智慧应用，实现 行业数字化转型，推动钢铁行业更加绿色、环保、节能。

The iron and steel industry of China is suffering from overcapacity, safety risks, environmental pollution and other problems. Simultaneously, it faces common problems, such as data collection, remote control and real-time data interaction. The service framework of NFV and SDN are employed by 5G SA. There are three application scenarios, eMBB, uRLLC and mMTC, which are applied to social vertical industries. Core private network scheme based on 5G SA on is proposed in this paper, which realizes industry digital transformation through constructing digital smart applications. It will make the steel industry greener, more environmentally friendly and more energy efficient.