Abstract: 【Objective】 The purpose of this study is to analyze the fermentation quality of different proportions of mixed storage and the drinking water quantity of each treatment extract in mice with Seriphidium Yili and inulins as raw materials with a view to providing a theoretical basis for the full utilization of Seriphidium resources on the northern slope of Tianshan Mountain in Xinjiang. 【Method】 The silage was fermented for 60 days according to the fresh weight ratio of 10∶0 (CK treatment), 9∶1 (T₁ treatment), 8∶2 (T₂ treatment) and 7∶3 (T₃ treatment) and then the nutritional components, organic acid content, fermentation quality and drinking water data of mice (drinking water quantity and extract consumption) were analyzed. 【Results】 Compared with the control group, the pH value, ammonia nitrogen / total nitrogen and propionic acid content of silage with different proportions were significantly decreased (P< 0.05); with the increase of the proportion of Stevia rebaudiana, the crude fat and neutral detergent fiber of silage with different proportions were significantly lower than those of the control group (P< 0.05), and the soluble carbohydrate, lactic acid content and crude ash content of silage with T₂ treatment were significantly higher than those of the control group (P< 0.05).The crude protein content of T₂ treatment was significantly higher than that of other treatments (P< 0.05); the acetic acid and propionic acid content of T₂ and T₃ treatment had no significant difference (P>0.05); except for the control group, the acid detergent fiber content of each treatment had no significant difference (P< 0.05); the total water consumption of male and female rats with T₂ treatment was significantly higher than that of other treatments (P < 0.05), and the total water consumption of mice with T₂ treatment was significantly increased (P<0.05). 【Conclusion】 The best mixed storage ratio is 7∶3 and the water content is 64.95%.