Abstract: The research was aimed to explore the new efficent culture technology in Qinghai alpine pastoral area by feeding Tibetan ewes in 45 days of late pregnancy and lactation period, and analysing the economic benefit of different produntion mode. The results showed that the birth weight, 2-month weaning weight and daily gain in sucking period in experimental group were all significantly higher than control group (P＜0.01), the 6-month weight and daily gain in fattening period in experimental group were all significantly higher than control group (P＜0.01), the reproductive survival rate in 2-month and 6-month were all higher than control group, the profit of unit lamb in experimental group was 242.79￥ higher than control group. It showed that strengthen standardized feeding and management of Tibetan ewes in each period could greatly improve the economic benefits of Tibetan lamb production.