The present invention relates to an apparatus for automatically adhering seeds (hereinafter “seeds” shall refer to pre-germination seed rice when adhered to the mulching film, and to seeds which have germinated and divided after being planted and growing deeper roots in a rice paddy) to a biodegradable mulching film having an anti-blocking function, and to a method for adhering the seeds by using the apparatus. More specifically, the present invention relates to the apparatus for automatically adhering the seeds, which forms by means of a cutting means or a punching means through-holes or germination gaps on the mulching film on which germination holes have not been punched, can process adhesive coating and seed adhering in an accurate, swift, and automatic manner, and which is provided with a releasing agent so as to coat the releasing agent after coating the adhesive, thereby preventing blocking due to overlapping of the mulching film when winding same.