Abstract: This study aimed to investigate the preparation technology of rape mixed silage using whole-plant rape as main raw material, and to assess its feeding effect on goats. Six silage preparation formulations were designed in present study （NO.1 -NO.6）; the moisture content of the rape mixed silage was adjusted to （60±2） % by adding different ratios of peanut vine, vinasse and corn powder, and the compound bacterial agent and Saccharomyces cerevisiae were also supplemented. After sixty days fermentation, sensory evaluation and acidity test were performed to assess the fermentation quality of the rape mixed silage prepared with different formulations; furthermore, feeding effect of the screened rape mixed silage with superior comprehensive quality on goat were evaluated using corn silage as control. When the ratio of whole-plant rape, peanut vine, vinasse and corn powder was 65：22：10：3 and the supplementing amount of compound bacterial agent and Saccharomyces cerevisiae was 1.5 g/t and 200 g/t respectively （NO.4 formulation）, the rape mixed silage had the best comprehensive quality; the goat fed the rape mixed silage prepared with NO.4 formulation showed no significant difference from the control goat in terms of average weight gain （P〉0.05）. The combine data suggest that the rape mixed silage prepared with whole-plant rape as main raw material has good comprehensive quality and has similar feeding effect on goat with traditional corn silage, indicating its promotion and application value.