(Task) To miniaturize a power transmission apparatus transmitting engine'；s driving force to a cutting apparatus and a threshing apparatus, and to provide a combine with an increased durability and maintainability. (Means for solution) For a combine installed in the front part of a threshing apparatus (10) and equipped with a power transmission apparatus (9) transmitting a driving force of an engine (3) to a cutting apparatus (5) and a threshing apparatus (10), provide the first rotating member (91) rotatably driven by a driving force of the engine (3) and supplying a driving force to a sorting part (6)； and the second rotating member (92) rotatably driven by transmission of a driving force from the first rotating member (91) and supplying a driving force to the threshing part (7)； and the third rotating member (93) rotatably driven by transmission of a driving force from the second rotating member (92) and supplying a driving force to the cutting apparatus (5).本發明提供一種聯合收割機，其將發動機的驅動力傳遞到收割裝置和脫粒裝置的動力傳遞裝置小型化，並且提高耐久性及維修保養性。該聯合收割機具備設置在脫粒裝置(10)的前部且將發動機(3)的驅動力傳遞到收割裝置(5)及脫粒裝置(10)的動力傳遞裝置(9)，動力傳遞裝置(9)具備：利用發動機(3)的驅動力而被旋轉驅動，且將驅動力供給至篩選部(6)的第一旋轉部件(91)；利用來自第一旋轉部件(91)的驅動力的傳遞而被旋轉驅動，且將驅動力供給至脫粒部(7)的第二旋轉部件(92)；以及利用來自第二旋轉部件(92)的驅動力的傳遞而被旋轉驅動，且將驅動力供給至收割裝置(5)的第三旋轉部件(93)。
