This study was designed to find out the effect of oral inoculation of aqueous extract of Curcuma Longa at two doses (1 and 5) mg/ kg body weight daily for 4 weeks on the immune response of Balb/c mice by estimating of serum concentration of interleukin-2 (IL-2) , interleukin-4 (IL-4), interleukin-10 (IL-10) and interferon gamma (INF-γ) using ELISA test. The present results revealed that significant increase (p