The invention discloses a hormone treatment method for prolonging the after-ripening stage of pseudo-ginseng seeds. The method comprises the following steps that ripe, full and even-size pseudo-ginseng seeds of triennial plants are selected; the seeds are peeled and cleaned completely with clear water, a 5% CuSO4 solution is used for soaking and sterilization, washing with water is conducted twice, and indoor drying in the shade is conducted for about 25 minutes to obtain clean seeds; the pseudo-ginseng seeds and an abscisic acid (ABA) solution are subjected to shading seed soaking for 24 hours according to the proportion of 1:4, washing with clear water is conducted once, and indoor drying in the shade is conducted for about 25 minutes to obtain clean seeds; the clean seeds and wet sand are evenly stirred and subjected to shading storage in a sand lamination room at 15 DEG C for 60-70 days. According to the hormone treatment method, the problems can be well solved that the pseudo-ginseng seeds are not resistant to storage and are easily inactivated, through comprehensive utilization of seed selection, hormone soaking, sand lamination treatment and other technologies, germination of the pseudo-ginseng seeds is delayed, so that the after-ripening stage of the pseudo-ginseng seeds is prolonged, the storage time of the pseudo-ginseng seeds is greatly prolonged finally, and the pseudo-ginseng sowing time is sufficient.