The invention belongs to the technical field of battery swapping for electric cars and particularly relates to a battery delivery system for a charging and battery swapping station. The battery delivery system comprises a double-layer transporting chain machine, a double-layer transferring chain machine and a lifting chain machine which are arranged sequentially; and a single-layer chain machine is arranged on the side surface of the double-layer transferring chain machine. According to the system, full-automatic delivery of batteries between cars to be subjected to battery swapping and a charging frame can be realized through cooperation of the double-layer transporting chain machine, the double-layer transferring chain machine and the lifting chain machine, the battery transporting delivery cost is reduced, and the battery transporting delivery efficiency is improved.