The invention discloses a method for reusing an anode support in a waste composite electrolyte membrane and relates to a method for reusing the anode support. The method for reusing the anode support solves the problems that the composite electrolyte membrane is prepared by screen printing and the cracked membrane after sintering and the anode support thereof are wasted together so as to result in wasting material resources and labor power and increasing cost. The method for reusing the anode support comprises the following steps: 1, removing a cracked SDC membrane on the anode support in the waste composite electrolyte membrane, obtaining a flat anode support with a YSZ membrane; 2, printing the SDC electrolyte slurry on the flat anode support with the YSZ membrane, drying to form a membrane, repeating the printing and drying steps, and obtaining an anode support printed with a SDC electrolyte membrane; and 3, putting the anode support into a muffle furnace, maintaining the temperature for sintering, and cooling the anode support to the room temperature with the furnace. The anode support in the waste composite electrolyte membrane is reused, the waste in the process is reduced, the manpower and material resources are saved, the cost is reduced and the compactness of the membrane is excellent.