Abstract: The developing process and characteristics of large screen display products used in dispatching system is expatiated concisely in this paper , and then it expounds the characteristics and of large screen display system used in Shaanxi Coal and Chemical Industry Group Co., Xiao Baodang Mine dispatch & command center from the seamless visual display, color saturation, color reduction, unit area power consumption, service life, maintenance costs and other aspects, and the importance of large screen display device used in intelligent mine’s safety prevention and control system is introduced as well.