Using four sets of Landsat TM images of 1990，1995，2000 and 2005 and the Markov model，the changes of land use and structure index were analyzed and predicted in order to improve the understandings of the driving forces for land use change in Changsha City． The results show that during the 30 years from 1990 to 2020 in Changsha City，the information entropy and equilibrium degree of the land use structure increased from 0． 879 3 and 0． 490 7 to 0． 922 5 and 0． 514 9，respectively，while the degree of dominance decreased from 0． 5093 to 0． 4851，reflecting the degree of order in the land resource system decreased． A significant and close correlation was also indentified between the land use structure changes and social economic driving factors．