The invention provides a walking type pineapple harvester, and belongs to the field of pineapple planting machines. The walking type pineapple harvester comprises a frame, wheels, an engine, a cutterhead, a cutterhead shaft, a transmission mechanism and a rotating mechanism. A collecting and conveying device and a pineapple temporary storage bin are omitted, and therefore the overall structure ofthe harvester is small and simple. Harvesting work is convenient through the position arrangement of a frame grip, and it is not needed to worry about damage of walking to fruits and plants. Forward power of the harvester depends on manual pushing, other power is supplied by the engine, forwarding and steering of the harvester are simple and controllable, and the harvester can adapt to complex terrain environments. Slipping of pineapples during cutting can be avoided through tooth-form cutter teeth of the cutterhead, and the cutting efficiency is improved. By means of the special structure that the tooth-form surface of the cutterhead is arranged into a horizontal surface, the other surface of the cutterhead is arranged into an inclined surface, on one hand, the cutting efficiency is improved, on the other hand, abrasion of the cutterhead is relieved, and polishing of secondary use of the cutterhead is also promoted.