A coating apparatus, a method of recycling a coating liquid by utilization of the same and a method for cleaning the same are provided. The coating apparatus includes a supply device, a coater device and a recycling device. The supply device includes a liquid inlet, a liquid outlet and a coating liquid supply unit connected with the liquid inlet. The coater device includes a coating liquid nozzle including a receiving opening connected with the liquid outlet of the supply device, a coating opening and an exhaust opening. The recycling device includes a recycled liquid outlet and at least one recycling inlet including a supply process recycling inlet which is connected with the exhaust opening of the coating liquid nozzle, and the recycled liquid outlet is connected with the liquid inlet of the supply device.