Abstract: Sudan is a vast country that is well known of its large animal population. Roselle is one of the important oil crops usually grown in Sudan for plant oil manufacturing. This experiment was conducted to investigate and evaluate Roselle seed as a ruminants feed through the effects on carcass characteristics of Sudan desert sheep. Crushed Roselle Seeds (CRS) meal was used at three levels (0, 15 and 25%). Roselle seeds were incorporated in three isocaloric, isonitrogenous diets (A, B and C, respectively). Thirty-six male lambs of Sudan desert sheep, Hamari ecotype, were selected according to their age (4-5 months) and their average body weight (21.8 kg). The lambs were randomly assigned to three treatments (12 animals each), then animals in each treatment were subdivided into three groups each of four animals (replicates) the trial extended for two months. The study showed a significant difference (p>0.05) among the treatment groups for slaughter weight (highest 38.17, lowest 37.59), empty body weight (highest 23.90, lowest 22.75), dressing percentage on live body weight (highest 52.70, lowest 49.68), dressing percentage on empty body weight (highest 62.25, lowest 60.51), hot carcass weight (highest 20.66, lowest 18.27), cold carcass weight (highest 20.31, lowest 18.23), carcass wholesale cuts, meat quality attributes, carcass physical composition and carcass chemical composition. On other hand slaughter by-products showed no significant differences (p<0.05) among treatment groups except liver, mesenteric fat, rumen (empty), reticulum (empty) which showed significant difference (p>0.05) among the treatments groups. Feeding of 25% crushed Roselle seed meal seems to enhance carcass characteristics and gave satisfactory results.