Abstract: 36 Zhongwei goat wethers with good health, similar birth and weaning time （five months old）and similar weight were randomly divided into four groups, and fed four different levels of nutrition diet. The results showed that the average daily gain of group II was the highest after 50 d fattening, which increased respectively by 18.67%, 18.70% and 23.82% than group ｜ , group HI and 1V group （P〈0.05）. However, the feed to gain ratio of group IV was the lowest, and the economic benefit was the highest group IV, which increased respectively by 0.25 times, 0.15 times and 1.56 times compared with group I, group II and group HI.