Abstract: 【Objective】 By analyzing and evaluating the changes of land landscape pattern and ecological risks in the study area, it provides a basis for the ecological construction and rational development of Tianshan Grand Canyon National Forest Park. 【Method】 Using ArcGIS and Fragstats software to calculate and analyze the landscape pattern index and ecological risk index, based on the land use data of the study area in 1990, 2000, 2010 and 2018, to conduct landscape ecological risk assessment. 【Result】 From 1990 to 2018, cultivated land, forest land and grassland were the main ecological landscape types in the region, accounting for 85.5% of the total area. The ecological landscape area of grassland and unused land increased significantly (7,894.7and 4,684.12 hm²), of which the area of cultivated land, forest land and water area decreased. (1,556, 5,898.54, 6,240.73 hm²); the number of patches, patch density, maximum patch index, spread and aggregation index in the regional landscape pattern index showed an upward trend; the area of low, medium and low risk areas during the study period increased (59.60 and 35.72 hm²), and the area of medium, high and high risk areas decreased (6.57, 32.14, 56.62 hm²). 【Conclusion】 According to the research and analysis of this data, the overall landscape ecological risk index has decreased, and the ecological environment has shown a good trend of development; South and Northeast transfer.