PROBLEM TO BE SOLVED: To provide a grass cutter capable of performing grass cutting work coping with a variety of shapes or positions.SOLUTION: A grass cutter 1 includes a travelling unit 2 and a grass cutting part 3 equipped with a cutter 11, and is configured so as to cut grass with the cutter 11 of the grass cutting part 3 while causing the travelling unit 2 to travel. The grass cutting part 3 is configured so that the cutter 11 extends toward the side of the travelling unit 2, and the horizontal position of the cutter 11, the vertical position of the cutter 11, or the angle in the vertical direction at which the cutter 11 extends from the travelling unit can be changed.
