An overhead type threshing and semi-feeding combine harvester header comprises a cutter mechanism, a reel mechanism, a lifting mechanism, a clamping and conveying chain mechanism, a threshing roller(1), a left guard plate (11), a right guard plate (12) and a grain gathering barrel (14). The lifting mechanism comprises a left lifting mechanism and a right lifting mechanism. Both of the left lifting mechanism and the right lifting mechanism comprise lifting plates (2) and annular transport belts (3), driving wheels (4), driven wheels (5), left bending guiding wheels Ⅰ and right bending guiding wheels Ⅰ (6) and left bending guiding wheels Ⅱ and right bending guiding wheels Ⅱ (10) arranged within the lifting plates (2). The upper portion of the lifting plate (2) bends backwards. The left bending guiding wheels (24), the right bending guiding wheels (25) and the left bending guiding wheels Ⅱ and the right bending guiding wheels Ⅱ (10) are arranged on both sides below the bending portion of the lifting plates (2). The left bending guiding wheels Ⅱ and the right bending guiding wheels Ⅱ (10) are located above the rear portion of the left bending guiding wheels Ⅰ and the right bending guiding wheels Ⅰ (6). The threshing roller (1) is arranged within the grain gathering barrel (14). The reel device, the lifting device, the clamping and conveying device, the threshing device, the grain gathering and conveying device are all arranged on the header of the overhead type threshing and semi-feeding combine harvester header. So the structure is simplified and the cost is low.Linvention concerne un bec cueilleur de moissonneuse-batteuse de battage et de semi-alimentation de type aérien, qui comprend un mécanisme de coupe, un mécanisme de bobine, un mécanisme de levage, un mécanisme de chaîne de serrage et de transport, un cylindre de battage (1), une plaque de protection gauche (11), une plaque de protection droite (12) et un tube de collecte de graine (14). Le mécanisme de levage c
