Organic livestock farming is one among various farming systems that is close to nature and ethics. The use of veterinary drugs and synthetic products in conventional animal farming is continuously increasing the threat to human health. Organic livestock farming not only proves to maintain health and welfare of animals but is also playing significant role in providing benefits regarding health of consumers, profit to producers and sustainability of the environment. Certified organic animals are mostly reared by feeding on pastures, fully organic nutrition is provided that is grown and processed by avoiding the use of synthetic pesticides and herbicides. Animals are reared without the use of any genetic modifications and antibiotics or artificial hormones are allowed only when no other option is available that too to a limited extent. The demand for organic livestock products is increasing tremendously with attendant expansion of organic livestock product markets. The presence of the developing countries like Brazil and Argentina in exporting the organic livestock products provides welcome opportunities for the other developing countries like India. In order to increase export of organic livestock products and develop strong domestic markets a lot of challenges must be overcome by the developing countries. Organic livestock farming has a greater demand and scope in present global scenario due to more focus towards sustainability. Despite its benefits there are many debatable questions like circulation of disease organisms, use of medicines and management, etc. regarding organic livestock farming in which further research and re-consideration is needed.