The invention belongs to the technical field of
agricultural machinery, and relates to a potato planting
machine, wherein the frame is provided with a seed storage box, the side wall of the seed storage box is vertically provided with a seed
discharge pipe, the seed
discharge port of the seed
discharge pipe is positioned below the frame, the seed discharge
pipe is vertically provided with a lifting device, the lifting device comprises a transmission chain wheel and a lifting chain with a material hopper, the lifting chain extends into seed storage box, the frame is provided with a
fertilizer box, the
fertilizer box is connected with the seed discharge pipe through a material discharge device, and a
ditch generating device is arranged below the frame and is positioned in front of the seed discharge port of the seed discharge pipe. According to the present invention, the lifting device and the seed discharge pipe are matched to complete the seed conveying and the
sowing operation, such that the
sowing accuracy is ensured, and the damage on the seed can not occur; and with the material discharge device, the
fertilizer application or
drug discharge and the
sowing operation are simultaneously performed and the fertilize application or
drug discharge is uniform, such that the potato
crop growth is substantially promoted, the working efficiency is improved, and the labor cost is reduced.