The invention discloses a cart type lawn mower, which comprises a first motor, a cutter head, blades, a water hydrogen machine, a raw material storage container, travelling wheels, a second motor, a first shell body, a second shell body, armrests and a main control circuit, wherein the first motor, the cutter head and the second motor are arranged in the first shell body; a cutting cavity is formed in the lower part of the first shell body, the cutter head is arranged in the cutting cavity, and the cutter head is provided with the blades; the first motor is connected with the cutter head, andthe first motor drives the cutter head to rotate, so as to drive the blades to rotate; each travelling wheel is provided with a driving shaft, the second motor is connected with the driving shafts ofthe traveling wheels, and the second motor drives the traveling wheel to travel; and the armrests are connected with the first shell body, and the driving shafts of the traveling wheels are connectedwith the first shell body by means of bearings. The cart type lawn mower provided by the invention can reduce the equipment noise, can ensure continuous operation of the machine, and does not rely onnon-renewable resources. In addition, the required expense is lower through generating power by utilizing methanol, and the user cost can be effectively reduced.