The experiment was conducted to study the effect of Moringa oleifera on hematological, biochemical parameters and the growth performance of young post - weaning rabbits. Twenty white New zeeland rabbits freshly weaned, one month aged and a body weight of 650-700 g. They divided into two groups one control (G1) and the other experimental (G2). The control group was provided with balanced ration whereas the experimental group was fed with both fresh leaves of moringa oleifera (2.5g/ kg of body weight) and balanced ration for 5 weeks. The results showed significant increase (p>0.05) in white blood cell (WBCs), red blood cell (RBCs), haemoglobin (Hb), packed cell volume (PCV) and platelets (PLT) in G2. Non-significant (p>0.05) influence of moringa leaves on some biochemical parameters except glucose, total cholesterol, calcium (Ca) and iron (Fe) there were significant difference. The best results of growth performance were obtained with Moringa supplement. The results suggest that moringa oleifera leaves possess good dietary protein quality for optimal growth of rabbits without any detrimental effects on the haematology and serum biochemistry of growing rabbits.