In order to study the effects of feeding suckling ewes with fresh forage rape,weight gain and serum parameters in lactating ewes and lambs of Yiling goats were detected.The paired experimental design was adopted according to body weight,lambing time,lambing number,gender and the birth weight of lambs.Fourteen lactating ewes with twin lambs,six lactating ewes with single lamb,and their corresponding 34 lambs were randomly allocated into the experimental group and the control group.The ewes were free to access basic diet while the ewes in the experimental group were given additional 1 kg of fresh forage rape every day.The results showed that there was no difference in feed intake of basic diet between the two groups.The experiment group had 42.81% more litter weight gain than the control group(P<0.05),and its ewe weight gain was 2.75 times of the control group.All of the ewes and lambs of the experiment group survived during the whole experiment while the fractions of survival ewes and lambs of the control group were 90. 00% and 76.47%,respectively.At the end of the experiment,the total serum cholesterol was in normal range of goat,however,cholesterol content of the experimental ewes was higher than that of the control group,and the serum urea nitrogen content of lambs in the experimental group was significantly lower than that of the control group(P<0.05).The economic benefit of the experimental group was 2.12 times of the control group.In conclusion,feeding lactating ewes with fresh forage rape can be beneficial to lambs weight gain and weight maintaining of ewes in goat.