Abstract:Yili in Xinjiang is an important animal husbandry base in China, with rich grassland resources. However, in recent years, the problem of grassland degradation in Ili area has become increasingly serious, which has seriously affected the local animal husbandry. Based on the field survey data of 22 sample areas in Ili area, this study explored the restoration effects of three measures of fence enclosure, reseeding and grazing prohibition on different types of grassland vegetation. The vegetation height, coverage, aboveground biomass and litter biomass of Ili mountain meadow, lowland meadow, temperate meadow and temperate desert steppe increased significantly after enclosure for more than 5 years. The vegetation height, coverage, aboveground biomass and litter biomass of the community increased by 66 %, 50 %, 48 % and 52 %, respectively. The vegetation coverage of the reseeding community also increased significantly, and the Simpson index, community vegetation coverage and aboveground biomass increased by 10 %, 57 % and 70 %, respectively. The plant species, community vegetation coverage and aboveground biomass of mountain meadow increased significantly by 32 %, 51 % and 29 %, respectively, after 2 years of grazing exclusion. The three measures have certain effects on the restoration of degraded grassland in Yili, Xinjiang, among which reseeding is the most effective measure to improve the vegetation coverage and aboveground biomass of the community. This study provides a theoretical basis for vegetation restoration and sustainable development of degraded grassland.