The utility model discloses a precise tobacco seeding and reseeding device, and belongs to the technical field of planting. The defect that in the prior art, in the tobacco floating seedling raising process, seedlings lack due to cavities in the sowing link is overcome. The device comprises a seed storage cover, a seed storage device, a seed taking rotating wheel and an operating wheel, a seed inlet is formed in the upper part of the seed storage device; a seed discharge discharge spout is arranged at the lower part; the seed storage cover is arranged on a seed inlet in the upper part of the seed storage device; two symmetrically-arranged bosses are arranged in the seed storage device, the seed taking rotating wheel is connected between the two bosses through a rotating shaft, gaps betweenthe seed taking rotating wheel and the bosses and between the seed taking rotating wheel and the side wall of the seed storage device are smaller than the diameter of coated seeds, the rotating shaftpenetrates through the wall body of the seed storage device to be fixedly connected with the center of an external operating wheel, and seed taking grooves are evenly distributed around the seed taking rotating wheel. According to the utility model, holes are manually and accurately reseeded in the seeding link, thinning and reseeding are basically not needed, the labor is saved, and the diseasepropagation probability is reduced.