Corn picker machine mainly solve the core pain points faced by farmers in the traditional harvesting process, such as high grain damage rate, low efficiency, difficulty in harvesting wet corn, and high equipment maintenance costs. By replacing time-consuming and laborious manual operations with mechanized harvesting, the operation speed is greatly improved, while reducing grain shedding, damage and field residue (the loss rate can be reduced to less than 2%), and adapting to complex farmland environments such as lodging and high humidity, helping farmers reduce labor dependence, shorten the harvesting cycle, and maximize grain production and economic benefits. This small two-row self-propelled corn harvester is adaptable for corn harvesting in plains, hills, and mountainous sloping areas. It features an independently developed adjustable diverter chain, allowing the cutting platform feed-in width to be freely adjusted from 1150mm to 1500mm, meeting the harvesting needs of corn with different row spacings. The ear-snapping platform and stalk shredder are independently controlled, with adjustable heights and tilt angles, capable of harvesting corn with an ear height of over 200mm. Additionally, it supports the attachment of a lodging attachment for harvesting severely lodged cornfields. The corn sheller uses an iron spiral and rubber rollers to enhance the smooth transportation of corn husks, minimizing the loss of kernels. The combination of a fan and a vibrating screen ensures thorough separation of husks from the grains. The key transmission parts of the entire machine use fully sealed maintenance-free bearings, reducing the frequency of maintenance and giving users more peace of mind. The four-wheel-drive design makes it no longer a problem to harvest corn in the field after rain.