Cold region tunnel temperature monitoring safety early warning system

The utility model discloses a cold region tunnel temperature monitoring safety early warning system which comprises a plurality of temperature sensors which are arranged in tunnel surrounding rock and are different in radial depth, and the temperature sensors penetrate through a concrete primary support; the temperature sensor is connected with the control device, and the control device is arranged in a tunnel car avoiding hole; the control device is connected with a network terminal outside the tunnel through a data sensing line, and the network terminal is provided with an early warning indicating lamp and an alarm. According to the utility model, the temperature distribution condition of the tunnel lining and the surrounding rock can be monitored for a long time, data reference is provided for tunnel temperature field research and thermal insulation layer laying, real-time early warning can be realized, diseases can be analyzed in advance, prevention and control measures can be taken in time, and engineeri