Aiming at the limitation of existing coal mine safety monitoring system, such as poor expansibility, longtime response and the relatively poor ability of monitoring moving objects, the article proposes a monitor platform which is developed by technology of IOT(Internet of things) to apply in the coal mine safety production. The platform is mainly composed of ZigBee wireless sensor networks, networking access server and PC visualization software system. It can be used to process, transmit, display and feedback information collected by various monitoring sensors. Through the test of mine simulation platform and undermine field test, it shows that the design enables the measuring and controlling of environmental parameters in coal mine and precise personnel positioning, it can be used to a valuable reference to the design of coal mine production safety monitoring.