A lawn mower is provided wherein mowed grass is discharged from a mower device into a grass collector, with turnover of a traveling body being prevented, with the grass in the grass collector deposited in a container. The lawn mower has a mower device mounted on a traveling body provided with right and left rear wheels, a grass collector for collecting the mowed grass, a discharge duct for discharging the mowed grass from the mower device to the grass collector, and a lift mechanism having right and left fixed masts for supporting the grass collector that is lifted up and down. The lift mechanism lifts the grass collector to discharge the mowed grass therein. The lift mechanism is disposed widthwise between the right and left grass collector sides. The discharge duct connects to the grass collector between the right and left fixed masts, and is disposed therebetween.
