The research on the formation kinetics of gas hydrates has been fairly fruitful,but it is late and not deep into the process of their decomposition.Hereby,it is necessary to know the hydrate decomposition process to make good use of this new energy sources.This paper conducts analyses and assessment on the research status of the decomposition kinetics of methane hydrate at constant pressure and mainly describes the experimental method,the measuration of kinetics parameters,and the kinetics model.At last this paper prospects the research direction of decomposition kinetics of gas hydrates.