Abstract: In this paper, a method of quantitatively analyzing DTA curves by two de-mension linear correlation, with which the kinetic parameters are obtained, is put forward according to the reasonable, kinetic model for the chemical reaction with characteristic thermal effect. The characteristics of this method is that some kinetic parameters are obtained by once experiment of DTAand once calculation only.Two kinds of methods of obtaining the data of DTAare illustrated in detail by some examples, and it is put forward that identity of the results obtained by two demension linear correlation with the data from two kinds of calculated methods is used as the criterion whether the kinetic parameters are correct or not.The results are compared with that of other researchers methods.