Abstract: In order to select the whole maize（Zea mays L.） varieties suitable for planting in Bahrain Right Banner, Chifeng City, 24 silage maize varieties were sown on April 20,2017. The random area design was adopted. The planting density was 4 200 plants/666.67 m~2, and each variety was planted in 10 rows with a planting area of 666.67 m~2. Three replicates were set with row spacing of 0.5 m and plant spacing of 0.4 m. The agronomic traits and fresh grass yield were measured and silage was prepared when the tested varieties entered milk maturity. The silage modulation was performed using the polyethylene small packaging simulated silage method with five replicates per variety. After 60 d of anaerobic fermentation, its nutritional composition and fermentation quality were determined. By comparing agronomic traits, nutritional composition and fermentation quality, the quality of different silage maize varieties was comprehensively evaluated and excellent varieties were screened by analysis of variance, cluster analysis and gray correlation method. The results showed that a single plant weight, stalk weight, spike weight and leaf weight were significantly correlated with yield（P＜0.01）, but plant height, panicle number and leaf number were not significantly correlated with yield（P＞0.05）. The varieties were divided into four categories by cluster analysis. The category 1 was Mengnong silage No.1, Jinling silage 367 and Junkai silage 909, which had low content of neutral detergent fiber（NDF） and acid washing fiber（ADF） and high content of crude fat（EE）. The category 2 was Qingmei No.1, Wenyu No.3, Jinling silage 357, British Red, Gold feeding No.10, and Hongbo 2160, which had low NDF and high lactic acid（LA） content. The category 3 was Jinling silage 377, Jinling silage 10, Jinjin feeding No.13, and Jinling silage 37, which not only had high yield, but also had high crude protein（CP） and LA contents. The category 4 was Baiqing 131, Henan silage 23, silage 808, Jinling silage 17, Jinling silage 67, Simon 919, Dajingjiu 26, Jinling silage 410, Jingke silage 516, Benong silage 208 and Baiqing 161, which have high production, soluble carbohydrates（WSC） and LA content. The yield and silage quality of 24 whole maize varieties were comprehensively evaluated by gray correlation method. The variety with the highest equal weight correlation degree and weighted correlation degree was Simon 919, which had the best comprehensive quality and was the best material, followed by Jinling silage 377, Jinling silage 17, Baiqing 131 and silage 808. The results indicated that Simon 919, Jinling silage 377, Jinling silage 17, Baiqing 131 and silage 808 had better silage effect in Bahrain Right Banner, Chifeng City.