The steel open cooling tower can be shipped as a whole in a modular way. There are only large parts during transportation, and the risk of missing parts during transportation is small. Field installation only needs to splice the box. The steel open cooling tower has stable structure, good internal environment, stable operation, good effect and excellent performance. The steel open cooling tower has low requirements for the bearing plane of the foundation. It does not need to build a high bearing platform, which saves manpower and material resources.