Abstract: The negative impact of pollution of environmental radionuclide on people and animals has been increasingly emphasized.The paper has an overall description of the concept and classification of radioactive materials, the accidents of nuclear pollution and nuclear power station leakage in the world, as well as the negative impact of radionuclide pollution on livestock, thus to make people better regulate and control the radioactive pollution to decrease the level of radionuclide in livestock.

Key words: radionuclide; environmental pollution; livestock; animal products; endanger; prevention