Your rabbit wont move but it is breathing what do you do?

The only thing you can do is bring the baby bunny to a vet who knows how to treat rabbits. There's probably nothing you can do for a baby bunny that can't breathe at home. Either the baby has an infection, and needs antibiotics and other medicine; or the baby has an obstruction and might need surgery, or the help of medical instruments; or the baby has a deformity and either needs surgery or perhaps should be euthanized. See the related question below for links and details.