Endosulfan an insecticide has not vast usage in controlling of insects. This poison is assailable on human and animals
via food, aspiration and skin. In this research, checked the long-range effect of Endosulfan EC 35% on blood factors
in rat. So 40 rat divided to 5 groups. The control group, the placebo group receipted saline 9% and 3 experimental
groups receipted 5 , 10 and 20 mg/kg for 21 days via gavages Endosulfan EC 35%.On the end of experiments the rats
wants into comatose via chloroform, phlebotomy of heart done and blood factors evaluated with laboratory standard
methods. Statistics analyze shows that the scale of WBC, monocyte, has got increase (P