The present invention relates to a seeding machine and, more specifically, to a seeding machine capable of seeding as needed for single seeding work in accordance with the strain or type of a seed. To achieve this purpose, the present invention includes: a storage space of which the both ends are opened and wherein seeds are stored; a seed bin having a lid for opening and closing the opened one end; an accommodation space combined with the seed bin and wherein the seeds supplied through the seed bin are temporarily stored; and a seed supply unit including a cylindrical outer container, of which the upper part is opened but the lower part is closed and which has an ascending/descending part caved toward the inner side and formed in the lower part, and an inner container, which includes a cylindrical tube having an outer circumference surface corresponding to an inner circumference surface of the outer container and combined with the ascending/descending part in the outer container and in which a seed seeding unit is combined in the bottom. The outer container includes: a top cover which is combined with the opened top to be detached and in which an outlet, which is pierced and formed in a site located on a relatively higher part of a slope formed to be unidirectionally sloped down, and an inlet which is pierced and formed in a site located on a relatively lower part of the slope; a coupling mean which is connected to the accommodation space and formed by protruding towards the outside of the outer circumference surface so as to combine with the seed bin; a discharge unit which is arranged directly under the outlet in the accommodation space and which has a bucket accommodating some of the stored seeds; a transfer pipe combined with the power part of the inlet so as to transfer the seed to the seed seedling unit; and a handle combined in the outer circumference surface to be one united body so as to be held by a user.본 발명은 종자 파종기에 관한 것으로서, 더욱 상세하게는 파종하고자 하는 씨앗 또는 종자의