The invention provides an energy recycling circulation system and a control method thereof. The energy recycling circulation system is used for recycling and utilizing heat on heat on a production line of high-temperature processing equipment. The circulation system comprises a pre-heating cavity and a cooling cavity, wherein the pre-heating cavity is used for pre-heating a workpiece to be processed entering the equipment, the cooling cavity is used for cooling the product after being processed by the equipment, and a connection path is arranged between the pre-heating cavity and the cooling cavity and is used for allowing air to flow between the pre-heating cavity and the cooling cavity. By the energy recycling circulation system, the heat on the production line of the high-temperature processing equipment can be recycled and circulated, the energy utilization ratio of the high-temperature processing equipment can be effectively improved, the energy consumption of the high-temperaturemachining process is reduced, the machining production cost is reduced, energy saving and emission reduction are achieved, and the production machining process is more green and environmental-friendly.