Abstract: Based on DPSIR model, the driving force - pressure - state - impact - response evaluation index system was established, and TOPSIS evaluation method was used to evaluate the land ecological security in Xinjiang from 2008 to 2019. The results showed that from 2008 to 2019, the overall level of land ecological security in Xinjiang presented a slow upward trend, the level of land ecological security was gradually improved, and the land security status was upgraded from an unsafe level to a relatively safe level. From the perspective of subsystems, the driving force system of Xinjiang land ecological security changed from unsafe state to relatively safe state, the state system, influence system and response system changed from unsafe state to safe state, and the pressure system showed a downward trend from a safe state to an unsafe state. From 2008 to 2019, the overall level of land ecological security in all prefectures, cities and districts in Xinjiang showed a slow upward trend, and the level of land ecological security gradually improved. There were obvious regional differences in the land ecological security situation, and the land ecological security situation in northern Xinjiang was higher than that in southern Xinjiang on the whole.

Key words: land ecological security, DPSIR model, TOPSIS evaluation method, Xinjiang