The parameter estimation of mixture of linear regression model with censored data is studied. The procedure of parameter estimation of mixture of linear regression model is established by EM algorithm. We collected data on GNP per capita and carbon dioxide emissions per capita in 28 countries in 2019.The mixture of linear regression model is used to fit for dataset of per capita GNP on carbon dioxide emissions and the dataset is analyzed, which provides the basis of the future development policies for some low GNP countries.