The advance on chemical compositions,pharmacological effect and clinic application of placenta and its extraction from huˉman and animals was summarized.At present,placenta hominis have been widely used in clinical practice,they were mainly applied in medical treatment.The placenta processing is now very primitive and its applied fields also need to be widen.The placenta prodˉucts from sheep are mainly applied in health care and cosmetics profession.The placenta products from deer are just in the beginning and there is a great developing potential in the future.Studies on placenta of other animals such as cattle,pig and so on are very little.It is suggested that the peptides produced from placenta and the mechanism should be more studied.There will be a great exˉploitative value and vast prospect for placenta products from deer placenta and domestic animal placenta.