Sweet potato seedling side transplanting transplanter and transplanting method

The invention relates to a sweet potato seedling side transplanting transplanter and a transplanting method. The sweet potato seedling side transplanting transplanter comprises a rack provided with a walking device, a transplanting device, an electric driving system and a sweet potato seedling conveying device, the electric driving system transmits electric energy of the storage battery pack to the rice transplanting device, the potato seedling conveying device and the driving rack to move; the rice transplanting device is matched with the potato seedling conveying device; the sweet potato seedling conveying device is adopted to automatically and sequentially convey sweet potato seedlings to seedling planting claws of the seedling transplanting device, and the sweet potato seedlings are laterally inserted into ridges; sweet potato seedlings can be planted in the direction perpendicular to the field ridges, the unit sweet potato seedling planting number is effectively increased, and the sweet potato seedling t