The invention discloses a method for adding a double-component retention and drainage aid in a corrugated paper production process. The method comprises the following steps: 1, preparing an aqueous cationic polyacrylamide solution with the concentration of 1g/L and an aqueous modified bentonite solution with the concentration of 100g/L; and 2, placing a paper pulp with the mass concentration of 0.8% in a dynamic drainage jar, uniformly stirring at room temperature under a rotating speed of 700-800r/min, adding 12-14ml of the aqueous cationic polyacrylamide solution to every liter of the paper pulp, stirring for 15s, adding 4-8ml of the aqueous modified bentonite solution to every liter of the paper pulp, and stirring for 15s. The method adopting a double-component retention and drainage aiding system improves the retention rate of fine components and a filler, improves the water drainage performance of the pulp, substantially reduces the COD content of tray water, and plays a great role in realization of closed circulation and zero discharge of papermaking industry white water.