[Problem] An animal intensive care apparatus (10) is provided with an A air-conditioning unit (88), a B air-conditioning unit (93), and a C air-conditioning unit (97) for an A intensive care room (20), a B intensive care room (40), and a C intensive care room (60), respectively. Thus, the room temperature can be set for the intensive care rooms individually, and air conditioning can be performed in accordance with the type or state of an animal housed. Further, the air-conditioning units can be maintained individually, whereby the intensive care rooms other than the intensive care room corresponding to the particular air-conditioning unit can be continuously used. Further, an A floor heating heater (30), a B floor heating heater (50), and a C floor heating heater (70) are disposed on the outer surfaces of rear plates of the A intensive care room (20), the B intensive care room (40), and the C intensive care room (60), respectively. Thus, the heat from the heaters is transmitted to the floor boards of the intensive care rooms, whereby the body temperature of a portion of the animal that is in contact with the intensive care room can be appropriately maintained.