HARVESTING MACHINE

A harvesting machine that is provided with an operation linkage mechanism for transmitting a pivoting operation of an operating lever 13 to a steering drive unit and a lifting/lowering drive unit is disclosed. The operation linkage mechanism includes a steering unit for linking the operating lever 13 to the steering drive unit, and a lifting/lowering unit for linking the operating lever 13 to a lifting/lowering drive unit, and the steering unit and the lifting/lowering unit include an output operation body 71 for transmitting a pivoting operation of the operating lever 13 to the steering drive unit or the lifting/lowering drive unit respectively. Within preset operable ranges of the steering drive unit and the lifting/lowering drive unit, the output operation body 71 integrally moves to follow the pivoting operation of the operating lever 13. After the steering drive unit and/or the lifting/lowering drive unit reach an operational limit of the respective operable ranges, if an operation using the operating lever 13 is performed in a direction moving the steering drive unit and/or the lifting/lowering drive unit to the outside of the respective operable ranges, the output operation body 71 does not integrally follow the operating lever 13, and an independent pivoting operation of the operating lever 13 is allowed.