The utility model discloses a colliery collecting space area temperature monitoring early warning system, all insert the first optical transmitter and receiver and the second optical transmitter and receiver of industry looped netowrk in the pit including industry looped netowrk and setting in the pit at subaerial ground monitor computer to and first mining heat sensitive optical fiber who lays in the colliery collecting space area and the mining heat sensitive optical fiber of second, ground monitor computer inserts industry looped netowrk in the pit, and the mining heat sensitive optical fiber of first mining heat sensitive optical fiber and second all is square waveform and lays in the colliery collecting space area, and first mining heat sensitive optical fiber and the mining heat sensitive optical fiber of the second central line that uses the colliery collecting space area is the symmetry as the symmetry axis and lays, is provided with first mining optic fibre temperature measurement host computer in the intake airflow roadway of colliery, is provided with the mining optic fibre temperature measurement host computer of second in the return air lane of colliery. The utility model discloses a temperature data collection wide range, the reliability is high, and signal transmission distance is far away, and the monitoring precision is high, can realize the temperature continuous monitor in whole collecting space area, and the practicality is strong, excellent in use effect, convenient to popularize and use.