This study was designed to determine the effect of using an aqueous extract of basil seeds, vitamin C, and selenium in some blood qualities of Iraqi Awassi sheep. Twenty Awassi sheep aged 9-10 months, with an average weight of 25.7 - 27.9 kg, were used in this study. An experiment has distributed into five groups, and each group included four ewes of homogeneous weights, with four repetitions in each group; then, the ewes were randomly divided into totals in the following form: T1 control treatment ewes were dosed with distilled water only, T2 was dosing with vitamin C at a concentration (250 mg/ kg/ day), T3 was dosing with selenium, and at a concentration (0.04 mg/ kg/ day), T4 was dosing with basil seed aqueous extract at a concentration (50 mg/kg/ day), T5 was dosed with basil seed aqueous extract, vitamin C and selenium and at the above doses in the second, third and fourth groups, respectively. The results of the statistical analysis of the fourth and fifth groups showed a significant superiority (p≤0.05) in the counting rates of erythrocytes, eggs, platelets, hemoglobin, and the volume of blood cells collected compared with the rest of the coefficients in the second, third, fourth and total periods of the experiment. The vitamin C and selenium groups also significantly outperformed (p≤0.05) in blood characteristics compared to the first treatment in the counting rates of Erythrocytes, Leukocytes, platelets, hemoglobin, and the volume of blood cells collected from the second period of the experiment to the end.