Agropyron cristatum is an excellent forage grass species growing in arid and semi-arid regions with important application value in production.In this study,grey correlation analysis was con-ducted for a comprehensive evaluation of the production performance and nutritional quality of 24 acces-sions of A.cristatum.The results demonstrated that wild resources of A.cristatum in Xinjiang exhibit advantages in plant height,leaf characteristics,biomass yield,and other production performances.The fresh biomass yield of WG3 was 14346.33 kg/hm2,which was 31.94%and 25.33%higher than control cultivars,'Nuodan'and'Mengnong',respectively.For nutritional quality,some wild materials are supe-rior in parameters such as acid detergent fiber,crude protein content,and crude fat content.WG3,in par-ticular,had the most crude protein content at 11.78%,while crude protein content of WG8 and WG16 were slightly lower at 10.65%and 10.18%,respectively.All three accessions had significantly higher(P<0.05)crude protein content compared to control cultivar'Mengnong'(8.56%).Grey correlation analysis revealed that WG3,WG19,and WG6 had the highest comprehensive evaluation values in A.cristatum materials from Xinjiang.