WORK MACHINE

A working machine includes: an operator's seat (6); and at least one pedal (85) to be operated by being stepped on with a foot, or with feet, the at least one pedal (85) being disposed ahead of the operator's seat (6). The at least one pedal (85) includes a pedal body (61) extending in a predetermined direction, a pedal shaft (44) supporting the pedal body (61) in such a way as to allow pivotal motion thereof in the predetermined direction, and a tread surface provided on an upper surface of the pedal body (61) and being a surface on which an operator places the foot. The tread surface is sloped such that a height from the pedal body (61) decreases gradually from a portion closer to a big toe of the foot of the operator placed thereon toward a portion closer to a little toe.