The invention discloses a newly born animal offspring conservation device. The newly born animal offspring conservation device comprises three parts including mammal living tank regions, an offspring living tank region and diet and drinking tank regions, wherein a plurality of mammal living tank regions surround the periphery of the offspring living tank region, the mammal living tank regions and the offspring living tank region are spaced through a fence, the diet and drinking tank regions are arranged at four corners of the connection positions of the mammal living tank regions respectively, the upper side of the offspring living tank region is covered with an infrared heat source cover through lifting rods, floors below the mammal living tank regions and the offspring living tank region are arranged in the form of leakage beds, and manure and urine collecting areas are arranged below the leakage beds. The newly born animal offspring conservation device can provide a clean environment, proper temperature and the like required for growth of newly born animal offsprings and has the advantages of low cost, practicability, convenience and the like.