The invention discloses a self walking type garlic combine harvester, which comprises a walking base plate, an engine, a bottom frame, a lifting frame, a clamping device, a garlic seedling paving and placing groove, a garlic head conveying groove and a garlic head collecting box, wherein a base plate driving axle is arranged on the walking base plate, the bottom frame is connected with the walking base plate, the back end of the lifting frame is connected with the bottom frame, the front end of the lifting frame is hinged and connected with a lifting oil cylinder, the lifting oil cylinder rotates around a rotating shaft of the lifting frame, the lower part of the front end of the lifting frame is provided with a digging device, a film breaking cutter is arranged at the front part of the digging device, the front part of the film digging cutter is provided with a seedling separating device, the clamping device comprises a clamping passage and a clamping driving motor, the clamping device is connected with the lifting frame, the engine is arranged at the back part of the walking base plate, a hydraulic pump is arranged in a front end gearbox of the engine and is connected with the clamping driving motor, the back end of the engine is connected with a variable motor pump, the garlic seedling paving and placing groove is arranged at the right side of the walking base plate, the garlic seedling paving and placing groove, the garlic head conveying groove and the bottom frame are connected, and the garlic head collecting box is positioned at the left side of the walking base plate.