PROBLEM TO BE SOLVED: To provide a reel type lawn mower supporting a mower unit so as not to bite into a travel surface due to travel resistance and not to cause variation in mowing heights.SOLUTION: A reel type riding lawn mower 1 includes: a machine body frame 5 a front arm 12 supported on a main arm 11 attached to the machine body frame 5 so as to oscillate in a machine body vertical direction via an oscillation mechanism 13 and a reel type center mowing unit 3 supported on a portion on a machine body front side of the front arm 12. The oscillation mechanism 13 is constituted of a four-node link mechanism oscillating the front arm 12 in a direction that a front side of the front arm 12 is lifted with respect to a rear side when the front arm 12 is pressed to a machine body rear side.SELECTED DRAWING: Figure 2
