Abstract: With the continuous innovation and development of social economy and science and technology, the domestic electromechanical industry has increased the research and application of advanced technology in the development process, thus effectively improving the quality and efficiency of electromechanical development,and improving the economic benefits of electromechanical related enterprises. This plays an important role in the development of the domestic social and economic system. Based on this, this article conducts a systematic analysis of the electromechanical installation engineering of a large complex for reference.