An air supply apparatus for experimental husbandry equipments includes a frame having a plurality of cubicles formed by a support frame, and a container for containing and breading an experimental animal. The frame has an air supply pipeline comprising a main intake pipe and a main extraction pipe, and a branch intake pipe and a branch extraction pipe are installed between the two main pipes, wherein the branch intake pipe is interconnected with the main intake pipe, and the branch extraction pipe is interconnected to the main extraction pipe, and each branch pipe has a through hole formed at a position corresponsive to each cubicle and a joint for supplying air to the container, and the air supply pipeline has an adjusting device for adjusting the amount of supplied air, so that each container can obtain an equal amount of air.
