Abstract: According to the coal yard distribution features in the mine, an applied plan of the temperature itelligent measurement for the coal yard in the mine was provided based on the distributed optical fiber temperature sensor system.The applied plan solved the real time continuous detection problem of the temperature in the coal yard.The paper introduced the principle, features and adjustment method of the optical fiber temperature sensor system.The wavelet resolution and the related del ay process combined the method was applied to the remove the noise and to improve the signal noise rate of the system.The system was tested under the temperature of 50。C and the rlibility and accuracy of the system was verified.