Introduction: Corn harvester is an agricultural machine and tool that can complete a number of operations such as picking ears, stacking and returning stalks to the field at a time when corn is mature. Process: The corn harvester is used to pick ears under the growing state of corn (called station stalk picking). Under the action of the picking roller and the picking board, the handle of the fruit ear is pulled off. Due to the effect of the difference in the height of the inner and outer roller, the ear fell into the ear box, and the ear was filled with the box set pile. The high speed rotary cutter cuts off the straw from the root and then enters the crushing mechanism and minces it into 3-5cm long pieces, after which the straw falls naturally. The ears are then taken to the field, peeled with a skinning machine, dried and threshed.