Abstract:With the development of science and technology, the degree of automation and integration and intelligence in modern mine enterprises are more and more high, and grounding system are also more and more efficient in mine enterprises. It could make Control system be disturbed and can not work properly and that even create damages to equipments or make loss of life and personal injury if we ignore the construction of grounding system. When involved in technology of mine engineering, the author found that some engineering technical personnels can’t often understand the grounding system of low voltage electrical and automation system well, and that always caused some lessons. This paper aims at elaborating the grounding system of low voltage electrical and automation system in mine enterprises in the aspect of engineering and go through the problem of the application of grounding system in some projects.