Abstract: To effectively control the spontaneous combustion of water-bearing coal in 5424Z coal mining face of Lyujiatuo Coal Mine, the influence of different water contents on the adsorption and exothermic parameters of coal samples was analyzed by using differential scanning calorimetry (DSC) and temperature programming method. The research shows that the moisture increase is in the range of 1% to 9%, and the temperature difference of the zero point of the heat flow is generally higher, indicating that the coal sample is not prone to spontaneous combustion. However, when the moisture increase of coal sample is 1% to 4%, the peak temperature of absorption peak is lower, and the heat absorption rate reaches the maximum value at this time. This part of coal sample is more prone to spontaneous combustion than other experimental water sections. As the water content of coal samples increases, the amount of CO and CO₂ produced by them increases gradually, but the difference is not obvious. This indicates that when the water content of coal seam is increased by 1% to 7%, the process of warming oxidation and spontaneous combustion of coal can be appropriately promoted.