Fecha de publicación: 30/08/2022 Fuente: WIPO "hemp" The invention discloses an upper conveying part height adjusting mechanism of an industrial hemp harvester, a rack of the upper conveying part height adjusting mechanism comprises an outer frame and a plate, and an upper conveying mechanism of the upper conveying part height adjusting mechanism comprises driving wheels arranged on the two sides of the outer frame and a driving chain wound on the driving wheels. The driving wheels on the two sides are arranged on a driving shaft externally connected with power and a transmission shaft passively and synchronously rotating, and the plate is located in the winding space of the driving chains and matched with the front driving chain to be used for limiting and conveying plants. The driving shaft and the transmission shaft are evenly provided with a plurality of debugging positions in the axial direction, one of the debugging positions is provided with a supporting piece, a limiting groove is formed in the lower surface of the driving wheel, when the driving wheel is arranged on the supporting piece from the upper portion, supporting is conducted, and the supporting piece is contained in the limiting groove to form structural limiting. And when the driving wheel is lifted and the supporting piece is changed to be arranged at the debugging positions with different heights, the height of the driving wheel is adjusted. The height of the upper conveying mechanism is adjusted, so that the machine is suitable for conveying plants with different heights.