Abstract: The high temperature and high pressure gas adsorption analysis device had been used for testing the influence of temperature on methane desorption under different pressure stages. The study found the experimental curve of the cumulative amount of gas desorption with the change of time, and then obtained the function of the cumulative amount of gas desorption and time. The experiment results show that with different temperature, the accumulated gas desorption quantity is mutative in the desorption pressure within each segment. Under the same pressure, it is easier for gas desorption when the temperature is higher. Gas content at each pressure segment can be fitted as a function with time.