The invention discloses a method for recycling walnut polyphenol and flavone in walnut kernel peeling wastewater through macroporous resin. The method comprises the operating steps of pretreatment of the walnut kernel peeling wastewater, separation, purification and regeneration of the macroporous adsorption resin, concentration and drying. The concentration of the walnut flavone in the pretreated walnut kernel peeling wastewater is reduced to 0.34mg/mL-0.67mg/mL through dilution, the pH value is adjusted to be 7-9 through concentrated hydrochloric acid, a solution is poured into an adsorption tank filled with the macroporous resin to be adsorbed, the adsorption time is more than 4 hours, after adsorption is finished, desorption is conducted through 60%-80% ethyl alcohol to obtain an ethyl alcohol walnut flavone solution, the solution is processed through vacuum evaporation, concentration and drying, the ethyl alcohol is recycled, and finally fine walnut flavone extract is obtained. The recycling rate of the walnut flavone is more than 70%, and the purity of the walnut flavone is more than 50%. The technological process is simple, the cost is low, the benefit is high, the macroporous resin can be regenerated and recycled, and the method is suitable for industrial recycling of walnut flavone compounds in the walnut kernel peeling wastewater.