Automatic seed feeding type automatic seeding machine

The invention relates to the related technical field of agriculture, and discloses an automatic seed feeding type automatic seeder which comprises a hopper, positions of a plurality of groups of second feeding ports are adjusted according to different sizes of seed particles, so that the second feeding ports with the corresponding sizes coincide with first feeding ports, and the second feeding ports with the corresponding sizes coincide with the first feeding ports; then, the crankshaft driving assembly drives the lifting cylinder to ascend and descend in a staggered mode, when the first feeding port and the notch coincide with each other, seeds flow into the lifting cylinder along the notch and the first feeding port and fall to the discharging port along the lifting cylinder, and then the seeds at the discharging port are plucked through the sowing assembly, so that sowing is conducted; according to the device, staggered sowing of seeds is achieved, intervals of the seeds are increased while the seed densit