Taking the hard stem of Caragana sinica as test materials，the effects of different concentrations of rooting agent，different ages of stem，different cuttage medias，different time on rooting rate,roots of per stem,root length of Caragana sinica were studied.The results showed that the branch of one-year-old,with 1.0 g/L rooting agent and perlite as media，the root rate could reach 92.0%，the average root number was 3.1，the average root length was 6.2 cm.Combined with the actual production，cutting in May could had a better root effect.