A production process includes: feeding the recycled coarse aggregates and new aggregates into the hot recycled material drying drum simultaneously through the cold material bin for heating; adding the recycled fine aggregates to the mixing cylinder of the cold recycled material mixer through the existing cold addition system for recycled materials, and then being mixed and stirred with the recycling agent after dry mixing for a certain period of time, and placing the oil-rich fine aggregates in the cold recycled material batching machine and conveyed to the cold recycled material hoist through a conveyor belt.