【Objective】 In order to investigate the optimal comprehensive evaluation model for establishing an artificial grass mixed seeding system in the Sanjiangyuan area of Qinghai Province.【Method】 This paper employed three different comprehensive evaluation methods to screen suitable gram‐bean mixed seeding combinations and proportions for planting in the Sanjiangyuan area.【Result】 The test results revealed that,among the three evaluation methods chosen,the AHP hierarchical analysis method identified the ideal mixed sowing combination and ratio as Avena sativa + Vicia sativa(70∶30),the affiliation function evaluation method identified it as Avena sativa + Vicia sativa (60∶40),and the gray correlation evaluation method determined it as Avena sativa + Vicia sativa(70∶30). 【Conclusion】 The best combined combination and ratio of Avena sativa + Vicia sativa(70∶30) is proposed for the alpine region,based on the the integrated gray correlation evaluation approach,considering the altitude conditions of the test area and other parameters.