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The present study was conducted in the Camels Farm in University of Kordofan, Elobeid town, Sudan during the period from January to July 2017. The objective of the research was to study the effect of Moringa olifera and Prosopis chilensis as additive feeds on the performance and carcass characteristics of Sudanese Arabi camel. Twenty four male of camel calves of Sudanese Arabi breed with age range from 2 to 3 years old and with initial body weight range from 216.67± 29.61 to 215.33 ± 48.30 kg were selected for the study. Complete Randomized Design (CRD) was used where the calves were divided into four groups each with 6 animals and each group was fed individually under semi-intensive feeding system. The first group was fed with Moringa olifera (M) ration, the second group was fed with Prosopis chilens (P), the third group was fed with mixed diet composed of Moringa olifera and Prosopis chilensis 1:1 (M+P) while the fourth group was left dependent on natural pasture as control. The data were statistically analyzed using Duncan's Multiple Range Test to compare between means. The results showed that, the highest daily body gain of 356.9±0.14 gram / day was achieved when animals fed with M diet, followed by 351.9±0.25 gram / day for animals that fed with P diet and 339.3±0.17 gram / day for animals which were fed with a mixture of M+P. The lowest body gain of 183.3±0.16 gram / day was recorded when animals left on natural pasture. The daily body gain for camel calves fed on M, P and a mixed diet of M+P was rising up gradually during the first three months of the experiment and then declining at the last two months. On the other hand, the daily body gain for camel calves grazed on natural pastures reached its peak in the second month and then declined in the last three months of the experiment. Regarding the carcass characteristics, no significant differences at p ≥ 0.05 were detected on carcass cut weights among the three rations M, P and M+P. The highest values of hot and cold back legs were 58.00±6.08 kg and 57.00±6.08 kg and hot and cold hump cut weights were 5.50±3.04 kg and 5.17±2.93 kg respectively and they were obtained by camels fed with M meal.