The safety production of coal mine has been the focus of attention of the society. It is an important topic in the coal mining enterprises that how to protect the coal mine production safety and the safety of people's life and property. This paper uses DSP technology to design a remote coal mine safety monitoring system, displaying the various environmental parameters and equipment parameters of coal mine in real-time, and providing early warning and alarm function. It can also realize remote monitoring and control through the GPRS and Internet, having important significance to the coal mine enterprise in safety production, civilized production and scientific production.