The most theoretical calculational models have the disadvantages of having too many parameters and little practicability，the theory and method of the multivariate linear regression are introduced. The tempera. ture model of the vegetation is acquired by analyzing a set of testing data，and the model is calculated. By analyz. ing the calculated result and actual measured result，the result shows that the vegetation temperature is accurately estimated by the analysis of the multivariate linear regression，this offers a new idea to establish temperature cal. culational model of the vegetation.