The utility model provides a multifunctional operating unit for potatoes in order to solve problems of existing potatoplanters. The unit has outstanding effects in aspects of seed taking evenness and missing-taking prevention. A seed taking device of the multifunctional operating unit comprises a seeding conveying chain and finger-like seed taking spoons arranged on the seeding conveying chain, wherein the seeding conveying chain is powered through a transmission shaft II; each finger-like seed taking spoon comprises a seed taking bottom plate and multiple seed taking fingers, the seed taking fingers are fixed on each seed taking bottom plate and distributed in the certainradian, and a seed clearing plate is arranged between every two seed taking fingers; each seed taking finger adopts a bent finger-like structure, and each seed clearing plate adopts an elongated plate-shaped structure provided with the bent bottom; the seed taking device is outstanding in effect in the aspects of seed taking evenness and missing-taking prevention.