Abstract: Abstract: In order to improve the quality and efficiency of the upright peanut pickup harvest in China, and solve the problems of the peanut pickup conveyor in China, such as the complex manufacturing process, high cost, poor handover and easy to jam, easy to entangle and skip tooth, easily twisted chain harrow, etc. a new large-scale full-feed peanut harvester pick-up conveyor was designed, including its overall structure and transmission system. The device is mainly composed of depth limiting wheel, vine and pods pressing rod, slide plate, pickup device, spiral conveyor, quick hook mechanism, conveying groove, chain harrow type conveyor, anti-winding device, hydraulic cylinder and transmission system, etc. The power of pickup, push concentrating and conveying was provided by the subsequent picking parts through the transmission system, and the high and low lifting adjustment power of the device was provided by the hydraulic system. The device can complete the operations of picking, pushing and squeezing, transferring and partial soil removal of peanut pods and plants. When working, the peanut vine and pods were driven by the rotating pickup teeth and interact with the pressing rods to enter the spiral conveyor along the slide plate. Under the rotating gathering of the spiral conveyor, the peanut vine and pods were gathered to dock with the conveyer of the middle section, and conveyed into the subsequent picking component，driven by the rotary movement of the conveyor chain harrow, through the space between the conveyor chain harrow and the bottom plate of the conveyor groove. At the same time, the ground clearance of the pickup teeth can be adjusted through adjusting the height of the pickup bench by the hydraulic cylinder.The structural design of key components and the analysis and determination of key parameters were carried out. Adopting funnel rafter eaves handover technology, a new type of sliding plate roller anti-stuck pick-up device shaped with Chinese character "凸" was designed, solving the problems of the complex manufacturing process, high cost, poor handover with spiral conveyor and easy to jam of traditional pickup device. Adopting static outside dynamic anti-winding technology, a chain harrow type conveyor was designed, avoiding the phenomenon like those that the conveying device is easy to be entangled, tooth skipping, chain harrow twisting.The above technology improved the efficiency and reliability of the peanut pick-up conveyor device.The field test showed that the pickup rate was 98.31%, the pickup-and-rods-drop rate was 1.12%, and the reliability was 98.91%. The performance indicators met the design requirements.This study can provide technical reference for the research and development of upright peanut pickup conveyor and other crop pickup conveyor equipment.