9 families in Xiangyang town of Taonan city were chosen and 10 to 15 ewes of each family were selected in the experiment.The ewes were same in weight and fatness and at lactation period.Two factors,i.e.,metabolizing energy and coarse protein in daily ration were analyzed and 3 level for each factor set.The results showed that taking integrated effect of metabolizing energy and coarse protein in daily ration on ewe’s weight and growth of lamb into consideration,it was suggested that 9.00 MJ/kg of metabolizing energy and 10.00% of coarse protein in daily ration should be provided for ewes at lactation period in production.