The effect of exposure to electric field of 4kV/m-50Hz, magnetic field of 0.3mT-50Hz and high energy photons of (6 MeV; 0.002Ao-1 rad) on rats' blood bioelectricity were studied. The electrical conductivity, relative permittivity and dielectric loss factors were monitored in the frequency range of 42Hz-8MHz for blood samples collected directly after exposure and 45 days' post exposure. Moreover, the exposure effect was studied on the blood minerals (Sodium, Calcium, Phosphate and Potassium) and protein concentrations. Our findings illuminated maximum shift at 5MHz in conductivity by 62% and in permittivity by 23 folds higher than control for samples collected after exposure to magnetic fields (30days-8h/day). Then it followed by samples collected after exposure to high energy photons as conductivity changed by 46% and permittivity by 8 folds higher than control. On the other hand, maximum deteriorative impact of exposure in minerals was shown for samples exposed to high energy photons as it indicated percentage of change in relative to control by 13%, 17% and 5% for phosphate, calcium and potassium respectively. No improvement shown for samples collected after 45 days' post exposure. The exposure to magnetic field has higher effect than exposure to electric field even at same exposure periods. The effect of exposure to non-ionizing radiations should take same concerns as ionizing radiation. Full blood analysis should include dielectric characteristics as parameters indicate possible cellular injuries. The need of more work to study the possible health consequences due to exposure to such non-ionizing radiations and to set new exposure limits.