a feeding module, which feeds seed potatoes with mass and shapes meeting requirements, screened out through a multistage screening and limiting mechanism;

a pre-cutting module, which receives the seed potatoes discharged from the feeding module, and cut each seed potato into two halves along a symmetry plane where a major axis of the seed potato is positioned;

a bud eye identifying and cutting module, which receives seed potato pieces discharged from the pre-cutting module, determines a weight of each seed potato piece, identifies bud eye distribution on a surface of the seed potato piece, and cuts the seed potato piece into a plurality of tubers as required, so that bud eyes are uniformly distributed on different tubers in number; and,

a material mixing module, which receives the tubers and complete mixing of the tubers with a mixing material;

wherein the bud eye identifying and cutting module comprises:

a material bearing disk, wherein the material bearing disc is provided with four pairs of material bearing disc circular grooves;

the material bearing disc rotates along a vertical axis, such that each pair of material bearing disc circular grooves is switched among a material falling station, an identification station, a cutting station, and a disinfection station;

the material bearing disc circular grooves at the material falling station receive the seed potato pieces discharged from the pre-cutting module;

and,

an identification assembly is arranged above the identification station, wherein the identification assembly identifies a position distribution of the bud eyes on an external circular surface of each seed potato piece and a weight of the seed potato piece; and transmits information to a control system, wherein the control system outputs an instruction about a cutting number and a cutter cutting solution to a cutter assembly according to a preset program, and the seed potato pieces at the cutting station are cut into the tubers as required by the cutter assembly;

wherein the bud eye identifying and cutting module comprises a fixing plate that is arranged horizontally; the fixing plate is supported through a machine frame; and

the identification assembly and the cutter assembly are arranged on a lower end surface of the fixing plate, the identification assembly comprises a camera and an infrared ranging part; and, is positioned right above the identification station;

arc-shaped blades in different structural forms are extended out from the cutter assembly, and the cutter assembly drives the arc-shaped blades to rotate along vertical axes thereof, so as to adapt to the instruction output from the control system.