 The study aims to improve the accuracy of estimating impervious surface using Cart algorithm by reducing systematic errors, resulting in a decrease in overall mean average error, MAE, and root mean square error, IMSE, and an increase in R2 value. The improved method was applied to three urban areas and showed significant improvement in high-density impervious surfaces. This article was authored by Jin Wang, Jifeng Wu, Changshan Wu, and others.